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         <h1>Introduction to SQL</h1>
         <p>Last updated on 2024-03-26 |
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@@ -417,8 +417,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="what-is-sql"><h2 class="section-heading">What is SQL?<a class="anchor" aria-label="anchor" href="#what-is-sql"></a>
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+<a class="anchor" aria-label="anchor" href="#what-is-sql"></a></h2>
 <hr class="half-width"><p><strong>S</strong>tructured <strong>Q</strong>uery
 <strong>L</strong>anguage, or SQL (sometimes pronounced “sequel”), is a
 powerful language used to interrogate and manipulate relational
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 programming languages to let any program interact with databases. There
 are several variants of SQL, but all support the same basic statements
 that we will be covering today.</p>
-</section><section id="relational-databases"><h2 class="section-heading">Relational databases<a class="anchor" aria-label="anchor" href="#relational-databases"></a>
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+<a class="anchor" aria-label="anchor" href="#relational-databases"></a></h2>
 <hr class="half-width"><p>Relational databases consist of one or more tables of data. These
 tables have <em>fields</em> (columns) and <em>records</em> (rows). Every
 field has a data <em>type</em>. Every value in the same field of each
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 other when a field in one table can be matched to a field in another
 table. SQL <em>queries</em> are the commands that let you look up data
 in a database or make calculations based on columns.</p>
-</section><section id="why-use-sql"><h2 class="section-heading">Why use SQL?<a class="anchor" aria-label="anchor" href="#why-use-sql"></a>
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 <hr class="half-width"><p>SQL is well established and has been around since the 1970s. It is
 still widely used in a variety of settings.</p>
 <p>SQL lets you keep the data separate from the analysis. There is no
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 Amazon) run on a SQL (relational) database. Understanding SQL is the
 first step in eventually building custom web applications that can serve
 data to users.</p>
-</section><section id="why-are-people-working-in-library--and-information-related-roles-well-suited-to-sql"><h2 class="section-heading">Why are people working in library- and information-related roles
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 <hr class="half-width"><p>Library work is about information management. As library workers, we
 help sort and organise information, and we help people find information.
 Most of us go through mediated queries to help people find the
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+<a class="anchor" aria-label="anchor" href="#database-management-systems"></a></h2>
 <hr class="half-width"><p>There are a number of different database management systems for
 working with relational data. We’re going to use SQLite today, but
 basically everything we teach you will apply to the other database
 systems as well (e.g., MySQL, PostgreSQL, MS Access, Filemaker Pro). The
 only things that will differ are the details of exactly how to import
 and export data and possibly some differences in datatype.</p>
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+<a class="anchor" aria-label="anchor" href="#introduction-to-db-browser-for-sqlite"></a></h2>
 <hr class="half-width"><p>Let’s all open the database we downloaded via the setup in DB Browser
 for SQLite.</p>
 <p>You can see the tables in the database by looking at the left hand
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 <li>Click “OK” to import the data. If the table name matches an existing
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 to add the data to the existing table.</li>
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+<a class="anchor" aria-label="anchor" href="#dataset-description"></a></h2>
 <hr class="half-width"><p>The data we will use was created from 5 csv files that contain tables
 of article titles, journals, languages, licences, and publishers. The
 information in these tables are from a sample of 51 different journals
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 <li>(2 fields, 6 records)</li>
 <li>Field names: <code>id</code>, <code>Publisher</code>
 </li>
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 <hr class="half-width"><p>The main data types that are used in doaj-article-sample database are
 <code>INTEGER</code> and <code>TEXT</code> which define what value the
 table column can hold.</p>
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+<a class="anchor" aria-label="anchor" href="#sql-data-type-quick-reference"></a></h2>
 <hr class="half-width"><p>Different database software/platforms have different names and
 sometimes different definitions of data types, so you’ll need to
 understand the data types for any platform you are using. The following
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           Home
         </a>
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       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
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   "identifier": "https://librarycarpentry.github.io/lc-sql/01-introduction.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-03-26",
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 }
 
   </script><script>
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         </div><!-- /div.sidebar-inner -->
@@ -368,18 +368,18 @@ <h2 class="accordion-header" id="flush-headingTwelve">
           Previous: Introduction to SQL
         </a>
         <a class="chapter-link float-end" href="03-filtering.html" rel="next">
-          Next: Filtering... 
+          Next: Filtering...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Selecting and sorting data</h1>
         <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/02-selecting-sorting-data.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
-        
-        
-        
+
+
+
         <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
         </div>
@@ -413,16 +413,16 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="what-is-a-query"><h2 class="section-heading">What is a query?<a class="anchor" aria-label="anchor" href="#what-is-a-query"></a>
-</h2>
+<section><h2 class="section-heading" id="what-is-a-query">What is a query?<a class="anchor" aria-label="anchor" href="#what-is-a-query"></a>
+<a class="anchor" aria-label="anchor" href="#what-is-a-query"></a></h2>
 <hr class="half-width"><p>A query is a question or request for data. For example, “How many
 journals does our library subscribe to?”. When we query a database, we
 can ask the same question using Structured Query Language (SQL) in what
 is called a statement. Some of the most useful queries - the ones we are
 introducing in this first section - are used to return results from a
 table that match specific criteria.</p>
-</section><section id="writing-my-first-query"><h2 class="section-heading">Writing my first query<a class="anchor" aria-label="anchor" href="#writing-my-first-query"></a>
-</h2>
+</section><section><h2 class="section-heading" id="writing-my-first-query">Writing my first query<a class="anchor" aria-label="anchor" href="#writing-my-first-query"></a>
+<a class="anchor" aria-label="anchor" href="#writing-my-first-query"></a></h2>
 <hr class="half-width"><p>Let’s start by opening DB Browser for SQLite and the
 doaj-article-sample database (see <a href="/">Setup</a>). Click “Browse
 Data” and select the <code>articles</code> table in the “Table” dropdown
@@ -437,8 +437,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 <pre class="sourceCode sql" tabindex="0"><code class="sourceCode sql"><span id="cb1-1"><a href="#cb1-1" tabindex="-1"></a><span class="kw">SELECT</span> title</span>
 <span id="cb1-2"><a href="#cb1-2" tabindex="-1"></a><span class="kw">FROM</span> articles;</span></code></pre>
 </div>
-</section><section id="capitalization-and-good-style"><h2 class="section-heading">Capitalization and good style<a class="anchor" aria-label="anchor" href="#capitalization-and-good-style"></a>
-</h2>
+</section><section><h2 class="section-heading" id="capitalization-and-good-style">Capitalization and good style<a class="anchor" aria-label="anchor" href="#capitalization-and-good-style"></a>
+<a class="anchor" aria-label="anchor" href="#capitalization-and-good-style"></a></h2>
 <hr class="half-width"><p>In the first query above, we have capitalized the words
 <code>SELECT</code> and <code>FROM</code> because they are SQL keywords.
 Even though capitalization makes no difference to the SQL interpreter,
@@ -478,8 +478,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 <pre class="sourceCode sql" tabindex="0"><code class="sourceCode sql"><span id="cb5-1"><a href="#cb5-1" tabindex="-1"></a><span class="kw">SELECT</span> <span class="op">*</span></span>
 <span id="cb5-2"><a href="#cb5-2" tabindex="-1"></a><span class="kw">FROM</span> articles;</span></code></pre>
 </div>
-</section><section id="unique-values"><h2 class="section-heading">Unique values<a class="anchor" aria-label="anchor" href="#unique-values"></a>
-</h2>
+</section><section><h2 class="section-heading" id="unique-values">Unique values<a class="anchor" aria-label="anchor" href="#unique-values"></a>
+<a class="anchor" aria-label="anchor" href="#unique-values"></a></h2>
 <hr class="half-width"><p>There may be a situation when you need to retrieve unique records and
 not multiple duplicate records. The SQL <code>DISTINCT</code> keyword is
 used after <code>SELECT</code> to eliminate duplicate records and fetch
@@ -500,8 +500,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 <pre class="sourceCode sql" tabindex="0"><code class="sourceCode sql"><span id="cb7-1"><a href="#cb7-1" tabindex="-1"></a><span class="kw">SELECT</span> <span class="kw">DISTINCT</span> ISSNs, <span class="dt">Day</span>, <span class="dt">Month</span>, <span class="dt">Year</span></span>
 <span id="cb7-2"><a href="#cb7-2" tabindex="-1"></a><span class="kw">FROM</span> articles;</span></code></pre>
 </div>
-</section><section id="sorting"><h2 class="section-heading">Sorting<a class="anchor" aria-label="anchor" href="#sorting"></a>
-</h2>
+</section><section><h2 class="section-heading" id="sorting">Sorting<a class="anchor" aria-label="anchor" href="#sorting"></a>
+<a class="anchor" aria-label="anchor" href="#sorting"></a></h2>
 <hr class="half-width"><p>We can also sort the results of our queries by using the keyword
 <code>ORDER BY</code>. Let’s create a query that sorts the articles
 table in ascending order by ISSNs using the <code>ASC</code> keyword in
@@ -595,7 +595,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
           Previous: Introduction to SQL
         </a>
         <a class="chapter-link float-end" href="03-filtering.html" rel="next">
-          Next: Filtering... 
+          Next: Filtering...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
@@ -606,18 +606,18 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/02-selecting-sorting-data.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
 			</div>
@@ -642,7 +642,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-sql/02-selecting-sorting-data.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-03-26",
-  "datePublished": "2024-07-02"
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
diff --git a/03-filtering.html b/03-filtering.html
index b61ad368..f0d8ab40 100644
--- a/03-filtering.html
+++ b/03-filtering.html
@@ -46,7 +46,7 @@
             </li>
           </ul></li>
       </div>
-      
+
       <div class="dropdown" id="instructor-dropdown">
         <button class="btn btn-secondary dropdown-toggle bordered-button" type="button" id="dropdownMenu1" data-bs-toggle="dropdown" aria-expanded="false">
           <i aria-hidden="true" class="icon" data-feather="eye"></i> Learner View <i data-feather="chevron-down"></i>
@@ -170,7 +170,7 @@ <h2 class="accordion-header" id="flush-headingNine">
                 </div><!--/div.accordion-flush-->
               </div><!--div.sidenav-view-selector -->
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@@ -189,7 +189,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Setup</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -198,7 +198,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading2">
         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -207,7 +207,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading3">
         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -221,13 +221,13 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         </span>
       </button>
     </div><!--/div.accordion-header-->
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     <div id="flush-collapsecurrent" class="accordion-collapse collapse show" aria-labelledby="flush-headingcurrent" data-bs-parent="#accordionFlushcurrent">
       <div class="accordion-body">
         <ul><li><a href="#filtering">Filtering</a></li>
         </ul></div><!--/div.accordion-body-->
     </div><!--/div.accordion-collapse-->
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+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -236,7 +236,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading5">
         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -245,7 +245,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="05-aggregating-calculating.html">5. Aggregating and calculating values</a>
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@@ -254,7 +254,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading7">
         <a href="06-joins-aliases.html">6. Joins and aliases</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -263,7 +263,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading8">
         <a href="07-saving-queries.html">7. Saving queries</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -272,7 +272,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading9">
         <a href="08-database-design.html">8. Database design</a>
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     <div class="accordion-header" id="flush-heading10">
         <a href="09-create.html">9. Creating tables and modifying data</a>
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         <a href="10-other-tools.html">10. Other database tools</a>
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@@ -308,7 +308,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading13">
         <a href="Bonus_GoodStyle.html">12. Good Style</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -340,10 +340,10 @@ <h2 class="accordion-header" id="flush-headingTwelve">
               </div>
             </div>
             <hr class="half-width resources"><a href="aio.html">See all in one page</a>
-            
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             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
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@@ -364,18 +364,18 @@ <h2 class="accordion-header" id="flush-headingTwelve">
           Previous: Selecting and
         </a>
         <a class="chapter-link float-end" href="04-ordering-commenting.html" rel="next">
-          Next: Ordering and... 
+          Next: Ordering and...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Filtering</h1>
         <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/03-filtering.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
-        
-        
-        
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+
+
         <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
         </div>
@@ -408,8 +408,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="filtering"><h2 class="section-heading">Filtering<a class="anchor" aria-label="anchor" href="#filtering"></a>
-</h2>
+<section><h2 class="section-heading" id="filtering">Filtering<a class="anchor" aria-label="anchor" href="#filtering"></a>
+<a class="anchor" aria-label="anchor" href="#filtering"></a></h2>
 <hr class="half-width"><p>SQL is a powerful tool for filtering data in databases based on a set
 of conditions. Let’s say we only want data for a specific ISSN, for
 instance, for the <em>Acta Crystallographica</em> journal from the
@@ -533,7 +533,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
           Previous: Selecting and
         </a>
         <a class="chapter-link float-end" href="04-ordering-commenting.html" rel="next">
-          Next: Ordering and... 
+          Next: Ordering and...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
@@ -544,18 +544,18 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/03-filtering.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
 			</div>
@@ -580,7 +580,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-sql/03-filtering.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-03-26",
-  "datePublished": "2024-07-02"
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
diff --git a/04-ordering-commenting.html b/04-ordering-commenting.html
index 57cfdc09..6646c54a 100644
--- a/04-ordering-commenting.html
+++ b/04-ordering-commenting.html
@@ -46,7 +46,7 @@
             </li>
           </ul></li>
       </div>
-      
+
       <div class="dropdown" id="instructor-dropdown">
         <button class="btn btn-secondary dropdown-toggle bordered-button" type="button" id="dropdownMenu1" data-bs-toggle="dropdown" aria-expanded="false">
           <i aria-hidden="true" class="icon" data-feather="eye"></i> Learner View <i data-feather="chevron-down"></i>
@@ -170,7 +170,7 @@ <h2 class="accordion-header" id="flush-headingNine">
                 </div><!--/div.accordion-flush-->
               </div><!--div.sidenav-view-selector -->
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           <div class="accordion accordion-flush" id="accordionFlush11">
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     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Setup</a>
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@@ -198,7 +198,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading2">
         <a href="01-introduction.html">1. Introduction to SQL</a>
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@@ -207,7 +207,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading3">
         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
     </div><!--/div.accordion-header-->
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@@ -216,7 +216,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="03-filtering.html">3. Filtering</a>
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@@ -230,14 +230,14 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         </span>
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       <div class="accordion-body">
         <ul><li><a href="#order-of-execution">Order of execution</a></li>
 <li><a href="#complex-queries-commenting">Complex queries &amp; commenting</a></li>
         </ul></div><!--/div.accordion-body-->
     </div><!--/div.accordion-collapse-->
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@@ -282,7 +282,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading10">
         <a href="09-create.html">9. Creating tables and modifying data</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -291,7 +291,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading11">
         <a href="10-other-tools.html">10. Other database tools</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -300,7 +300,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading12">
         <a href="11-extra-challenges.html">11. Extra challenges (optional)</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -309,7 +309,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading13">
         <a href="Bonus_GoodStyle.html">12. Good Style</a>
     </div><!--/div.accordion-header-->
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+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -341,10 +341,10 @@ <h2 class="accordion-header" id="flush-headingTwelve">
               </div>
             </div>
             <hr class="half-width resources"><a href="aio.html">See all in one page</a>
-            
+
 
             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
-            
+
             </div>
           </div><!-- /div.accordion -->
         </div><!-- /div.sidebar-inner -->
@@ -365,18 +365,18 @@ <h2 class="accordion-header" id="flush-headingTwelve">
           Previous: Filtering
         </a>
         <a class="chapter-link float-end" href="05-aggregating-calculating.html" rel="next">
-          Next: Aggregating and... 
+          Next: Aggregating and...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Ordering and commenting</h1>
         <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/04-ordering-commenting.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
-        
-        
-        
+
+
+
         <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
         </div>
@@ -406,8 +406,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="order-of-execution"><h2 class="section-heading">Order of execution<a class="anchor" aria-label="anchor" href="#order-of-execution"></a>
-</h2>
+<section><h2 class="section-heading" id="order-of-execution">Order of execution<a class="anchor" aria-label="anchor" href="#order-of-execution"></a>
+<a class="anchor" aria-label="anchor" href="#order-of-execution"></a></h2>
 <hr class="half-width"><p>Let’s say we had the following query:</p>
 <div class="codewrapper sourceCode" id="cb1">
 <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -440,8 +440,8 @@ <h3 class="callout-title">The computer is basically doing this:<a class="anchor"
 <code>FROM</code>, <code>WHERE</code>, then <code>ORDER BY</code>. It is
 possible to write a query as a single line, but for readability, we
 recommend to put each clause on its own line.</p>
-</section><section id="complex-queries-commenting"><h2 class="section-heading">Complex queries &amp; commenting<a class="anchor" aria-label="anchor" href="#complex-queries-commenting"></a>
-</h2>
+</section><section><h2 class="section-heading" id="complex-queries-commenting">Complex queries &amp; commenting<a class="anchor" aria-label="anchor" href="#complex-queries-commenting"></a>
+<a class="anchor" aria-label="anchor" href="#complex-queries-commenting"></a></h2>
 <hr class="half-width"><p>The goal is to make a query easy to read and understand, even when
 the logic becomes complex. This can be handled in two ways:</p>
 <ol style="list-style-type: decimal"><li>Rewriting the query so that the logic is easy to follow</li>
@@ -530,7 +530,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
           Previous: Filtering
         </a>
         <a class="chapter-link float-end" href="05-aggregating-calculating.html" rel="next">
-          Next: Aggregating and... 
+          Next: Aggregating and...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
@@ -541,18 +541,18 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/04-ordering-commenting.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
 			</div>
@@ -577,7 +577,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-sql/04-ordering-commenting.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-03-26",
-  "datePublished": "2024-07-02"
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
diff --git a/05-aggregating-calculating.html b/05-aggregating-calculating.html
index 9ca19368..88b04e80 100644
--- a/05-aggregating-calculating.html
+++ b/05-aggregating-calculating.html
@@ -46,7 +46,7 @@
             </li>
           </ul></li>
       </div>
-      
+
       <div class="dropdown" id="instructor-dropdown">
         <button class="btn btn-secondary dropdown-toggle bordered-button" type="button" id="dropdownMenu1" data-bs-toggle="dropdown" aria-expanded="false">
           <i aria-hidden="true" class="icon" data-feather="eye"></i> Learner View <i data-feather="chevron-down"></i>
@@ -170,7 +170,7 @@ <h2 class="accordion-header" id="flush-headingNine">
                 </div><!--/div.accordion-flush-->
               </div><!--div.sidenav-view-selector -->
             </div><!--/div.col -->
-      
+
             <hr></div><!--/div.mobile-row -->
 
           <div class="accordion accordion-flush" id="accordionFlush11">
@@ -189,7 +189,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Setup</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -198,7 +198,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading2">
         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -207,7 +207,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading3">
         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -216,7 +216,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading4">
         <a href="03-filtering.html">3. Filtering</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -225,7 +225,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading5">
         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -239,7 +239,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         </span>
       </button>
     </div><!--/div.accordion-header-->
-        
+
     <div id="flush-collapsecurrent" class="accordion-collapse collapse show" aria-labelledby="flush-headingcurrent" data-bs-parent="#accordionFlushcurrent">
       <div class="accordion-body">
         <ul><li><a href="#aggregation">Aggregation</a></li>
@@ -247,7 +247,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
 <li><a href="#calculations">Calculations</a></li>
         </ul></div><!--/div.accordion-body-->
     </div><!--/div.accordion-collapse-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -256,7 +256,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading7">
         <a href="06-joins-aliases.html">6. Joins and aliases</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -265,7 +265,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading8">
         <a href="07-saving-queries.html">7. Saving queries</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -274,7 +274,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading9">
         <a href="08-database-design.html">8. Database design</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -283,7 +283,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading10">
         <a href="09-create.html">9. Creating tables and modifying data</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -292,7 +292,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading11">
         <a href="10-other-tools.html">10. Other database tools</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -301,7 +301,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading12">
         <a href="11-extra-challenges.html">11. Extra challenges (optional)</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -310,7 +310,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading13">
         <a href="Bonus_GoodStyle.html">12. Good Style</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -342,10 +342,10 @@ <h2 class="accordion-header" id="flush-headingTwelve">
               </div>
             </div>
             <hr class="half-width resources"><a href="aio.html">See all in one page</a>
-            
+
 
             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
-            
+
             </div>
           </div><!-- /div.accordion -->
         </div><!-- /div.sidebar-inner -->
@@ -366,18 +366,18 @@ <h2 class="accordion-header" id="flush-headingTwelve">
           Previous: Ordering and
         </a>
         <a class="chapter-link float-end" href="06-joins-aliases.html" rel="next">
-          Next: Joins and aliases... 
+          Next: Joins and aliases...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Aggregating and calculating values</h1>
         <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/05-aggregating-calculating.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
-        
-        
-        
+
+
+
         <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
         </div>
@@ -409,8 +409,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="aggregation"><h2 class="section-heading">Aggregation<a class="anchor" aria-label="anchor" href="#aggregation"></a>
-</h2>
+<section><h2 class="section-heading" id="aggregation">Aggregation<a class="anchor" aria-label="anchor" href="#aggregation"></a>
+<a class="anchor" aria-label="anchor" href="#aggregation"></a></h2>
 <hr class="half-width"><p>SQL contains functions which allow you to make calculations on data
 in your database for reports. Some of the most common functions are
 <code>MAX, MIN, AVG, COUNT, SUM</code>, and they will: <code>MAX</code>
@@ -467,7 +467,7 @@ <h3 class="callout-title">Challenge<a class="anchor" aria-label="anchor" href="#
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb3">
 <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -481,8 +481,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 </div>
 </div>
 </div>
-</section><section id="the-having-keyword"><h2 class="section-heading">The <code>HAVING</code> keyword<a class="anchor" aria-label="anchor" href="#the-having-keyword"></a>
-</h2>
+</section><section><h2 class="section-heading" id="the-having-keyword">The <code>HAVING</code> keyword<a class="anchor" aria-label="anchor" href="#the-having-keyword"></a>
+<a class="anchor" aria-label="anchor" href="#the-having-keyword"></a></h2>
 <hr class="half-width"><p>SQL offers a mechanism to filter the results based on aggregate
 functions, through the <code>HAVING</code> keyword.</p>
 <p>For example, we can adapt the last request we wrote to only return
@@ -526,7 +526,7 @@ <h3 class="callout-title">Challenge<a class="anchor" aria-label="anchor" href="#
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb5">
 <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -540,8 +540,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 </div>
 </div>
 </div>
-</section><section id="calculations"><h2 class="section-heading">Calculations<a class="anchor" aria-label="anchor" href="#calculations"></a>
-</h2>
+</section><section><h2 class="section-heading" id="calculations">Calculations<a class="anchor" aria-label="anchor" href="#calculations"></a>
+<a class="anchor" aria-label="anchor" href="#calculations"></a></h2>
 <hr class="half-width"><p>In SQL, we can also perform calculations as we query the database.
 Also known as computed columns, we can use expressions on a column or
 multiple columns to get new values during our query. For example, what
@@ -591,7 +591,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
           Previous: Ordering and
         </a>
         <a class="chapter-link float-end" href="06-joins-aliases.html" rel="next">
-          Next: Joins and aliases... 
+          Next: Joins and aliases...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
@@ -602,18 +602,18 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/05-aggregating-calculating.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
 			</div>
@@ -638,7 +638,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-sql/05-aggregating-calculating.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-03-26",
-  "datePublished": "2024-07-02"
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
diff --git a/06-joins-aliases.html b/06-joins-aliases.html
index f0b0d607..853061c4 100644
--- a/06-joins-aliases.html
+++ b/06-joins-aliases.html
@@ -46,7 +46,7 @@
             </li>
           </ul></li>
       </div>
-      
+
       <div class="dropdown" id="instructor-dropdown">
         <button class="btn btn-secondary dropdown-toggle bordered-button" type="button" id="dropdownMenu1" data-bs-toggle="dropdown" aria-expanded="false">
           <i aria-hidden="true" class="icon" data-feather="eye"></i> Learner View <i data-feather="chevron-down"></i>
@@ -170,7 +170,7 @@ <h2 class="accordion-header" id="flush-headingNine">
                 </div><!--/div.accordion-flush-->
               </div><!--div.sidenav-view-selector -->
             </div><!--/div.col -->
-      
+
             <hr></div><!--/div.mobile-row -->
 
           <div class="accordion accordion-flush" id="accordionFlush11">
@@ -189,7 +189,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Setup</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -198,7 +198,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading2">
         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -207,7 +207,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading3">
         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -216,7 +216,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading4">
         <a href="03-filtering.html">3. Filtering</a>
     </div><!--/div.accordion-header-->
-        
+
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         </a>
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-          Next: Saving queries... 
+          Next: Saving queries...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Joins and aliases</h1>
         <p>Last updated on 2024-03-26 |
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         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/06-joins-aliases.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
-        
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 </div>
 </div>
 </div>
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-</h2>
+<section><h2 class="section-heading" id="joins">Joins<a class="anchor" aria-label="anchor" href="#joins"></a>
+<a class="anchor" aria-label="anchor" href="#joins"></a></h2>
 <hr class="half-width"><p>The SQL <code>JOIN</code> clause allows us to combine columns from
 one or more tables in a database by using values common to each. It
 follows the <code>FROM</code> clause in a SQL statement. We also need to
@@ -564,8 +564,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 <p>There are different types of joins which you can learn more about at
 <a href="https://www.geeksforgeeks.org/sql-join-set-1-inner-left-right-and-full-joins/" class="external-link">SQL
 Joins Explained</a>.</p>
-</section><section id="aliases"><h2 class="section-heading">Aliases<a class="anchor" aria-label="anchor" href="#aliases"></a>
-</h2>
+</section><section><h2 class="section-heading" id="aliases">Aliases<a class="anchor" aria-label="anchor" href="#aliases"></a>
+<a class="anchor" aria-label="anchor" href="#aliases"></a></h2>
 <hr class="half-width"><p>As queries get more complex, names can get long and unwieldy. To help
 make things clearer we can use aliases to assign new names to items in
 the query.</p>
@@ -626,7 +626,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
           Previous: Aggregating and
         </a>
         <a class="chapter-link float-end" href="07-saving-queries.html" rel="next">
-          Next: Saving queries... 
+          Next: Saving queries...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
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       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/06-joins-aliases.md" class="external-link">Edit on GitHub</a>
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         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
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         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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@@ -673,7 +673,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
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   "dateCreated": "2018-04-12",
   "dateModified": "2024-03-26",
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+  "datePublished": "2024-07-09"
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     <div class="accordion-header" id="flush-heading5">
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         </a>
         <a class="chapter-link float-end" href="08-database-design.html" rel="next">
-          Next: Database design... 
+          Next: Database design...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Saving queries</h1>
         <p>Last updated on 2023-05-02 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/07-saving-queries.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
-        
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         </div>
@@ -405,8 +405,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
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-</h2>
+<section><h2 class="section-heading" id="saving-queries-for-future-use">Saving queries for future use<a class="anchor" aria-label="anchor" href="#saving-queries-for-future-use"></a>
+<a class="anchor" aria-label="anchor" href="#saving-queries-for-future-use"></a></h2>
 <hr class="half-width"><p>It is not uncommon to repeat the same operation more than once, for
 example for monitoring or reporting purposes. SQL comes with a very
 powerful mechanism to do this: views. Views are queries saved in the
@@ -508,7 +508,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
           Previous: Joins and aliases
         </a>
         <a class="chapter-link float-end" href="08-database-design.html" rel="next">
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       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/07-saving-queries.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
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         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
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         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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@@ -555,7 +555,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-sql/07-saving-queries.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-02",
-  "datePublished": "2024-07-02"
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
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           Previous: Saving queries
         </a>
         <a class="chapter-link float-end" href="09-create.html" rel="next">
-          Next: Creating tables and... 
+          Next: Creating tables and...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
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       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Database design</h1>
         <p>Last updated on 2024-03-26 |
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-<section id="spreadsheets"><h2 class="section-heading">Spreadsheets<a class="anchor" aria-label="anchor" href="#spreadsheets"></a>
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+<section><h2 class="section-heading" id="spreadsheets">Spreadsheets<a class="anchor" aria-label="anchor" href="#spreadsheets"></a>
+<a class="anchor" aria-label="anchor" href="#spreadsheets"></a></h2>
 <hr class="half-width"><p>In libraries, spreadsheets are often created to keep lists of a
 variety of things like an inventory of equipment, reference statistics,
 or items to review for purchase (See <em><a href="01-introduction.html">What are some of the uses for SQL in
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 <ol style="list-style-type: decimal"><li>The data in the “Language” column is formatted in two ways, as an
 abbreviation and the full word;</li>
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 queries to find these issues and address them across your entire
 dataset. Before you can take advantage of all of these tools, you need
 to design your database.</p>
-</section><section id="database-design"><h2 class="section-heading">Database Design<a class="anchor" aria-label="anchor" href="#database-design"></a>
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+</section><section><h2 class="section-heading" id="database-design">Database Design<a class="anchor" aria-label="anchor" href="#database-design"></a>
+<a class="anchor" aria-label="anchor" href="#database-design"></a></h2>
 <hr class="half-width"><p>Database design involves a model or plan developed to determine how
 the data is stored, organized and manipulated. The design addresses what
 data will be stored, how they will be classified, and the
 interrelationships between the data across different tables in the
 database.</p>
-</section><section id="terminology"><h2 class="section-heading">Terminology<a class="anchor" aria-label="anchor" href="#terminology"></a>
-</h2>
+</section><section><h2 class="section-heading" id="terminology">Terminology<a class="anchor" aria-label="anchor" href="#terminology"></a>
+<a class="anchor" aria-label="anchor" href="#terminology"></a></h2>
 <hr class="half-width"><figure><img src="fig/field-record-value.png" alt="Fields, Records, Values" class="figure mx-auto d-block"></figure><p>In the <a href="01-introduction.html">Introduction to SQL</a> lesson,
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 are commonly used in databases while the “columns”, “rows”, and “cells”
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 like to capture, along with how the different entities are related to
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 or ERD).</p>
-</section><section id="entity-relationship-diagram-er-diagram-or-erd"><h2 class="section-heading">Entity Relationship Diagram (ER Diagram or ERD)<a class="anchor" aria-label="anchor" href="#entity-relationship-diagram-er-diagram-or-erd"></a>
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+</section><section><h2 class="section-heading" id="entity-relationship-diagram-er-diagram-or-erd">Entity Relationship Diagram (ER Diagram or ERD)<a class="anchor" aria-label="anchor" href="#entity-relationship-diagram-er-diagram-or-erd"></a>
+<a class="anchor" aria-label="anchor" href="#entity-relationship-diagram-er-diagram-or-erd"></a></h2>
 <hr class="half-width"><p>ERDs are helpful tools for visualising and structuring your data more
 efficiently. They allow you to map relationships between concepts and
 ultimately construct a relational database. The following is an ERD of
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 journals are associated with which publisher in a way that keeps the
 integrity of the data (see <a href="#normalisation">the Normalisation
 section</a> below).</p>
-</section><section id="more-terminology"><h2 class="section-heading">More Terminology<a class="anchor" aria-label="anchor" href="#more-terminology"></a>
-</h2>
+</section><section><h2 class="section-heading" id="more-terminology">More Terminology<a class="anchor" aria-label="anchor" href="#more-terminology"></a>
+<a class="anchor" aria-label="anchor" href="#more-terminology"></a></h2>
 <hr class="half-width"><p>The degree of relationship between entities is known as their
 ‘cardinality’. Using the journals-publishers example, the ‘publishers’
 table contains a primary key (PK) called ‘id’. When the PK is used to
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 so it will appear multiple times in that field.</p>
 <p>A key attribute is often included when designing databases to
 facilitate joins.</p>
-</section><section id="normalisation"><h2 class="section-heading">Normalisation<a class="anchor" aria-label="anchor" href="#normalisation"></a>
-</h2>
+</section><section><h2 class="section-heading" id="normalisation">Normalisation<a class="anchor" aria-label="anchor" href="#normalisation"></a>
+<a class="anchor" aria-label="anchor" href="#normalisation"></a></h2>
 <hr class="half-width"><p>ERDs are helpful in normalising your data which is a process that can
 be used to create tables and establish relationships between those
 tables with the goal of eliminating redundancy and inconsistencies in
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 </button>
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 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>An ‘authors’ table can be created with a many-to-many relationship
 with the ‘articles’ table and an <a href="https://en.wikipedia.org/wiki/Associative_entity" class="external-link">associative
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           Previous: Saving queries
         </a>
         <a class="chapter-link float-end" href="09-create.html" rel="next">
-          Next: Creating tables and... 
+          Next: Creating tables and...
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       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
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+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/08-database-design.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
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         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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@@ -676,7 +676,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-sql/08-database-design.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-03-26",
-  "datePublished": "2024-07-02"
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
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         <a href="01-introduction.html">1. Introduction to SQL</a>
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         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
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             <hr class="half-width resources"><a href="aio.html">See all in one page</a>
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           Previous: Database design
         </a>
         <a class="chapter-link float-end" href="10-other-tools.html" rel="next">
-          Next: Other database tools... 
+          Next: Other database tools...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Creating tables and modifying data</h1>
         <p>Last updated on 2024-03-26 |
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+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/09-create.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
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@@ -614,7 +614,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
           Previous: Database design
         </a>
         <a class="chapter-link float-end" href="10-other-tools.html" rel="next">
-          Next: Other database tools... 
+          Next: Other database tools...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
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       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
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+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/09-create.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
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 			<div class="col-md-6">
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         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
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         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
 			</div>
@@ -661,7 +661,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-sql/09-create.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-03-26",
-  "datePublished": "2024-07-02"
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
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         <button class="btn btn-secondary dropdown-toggle bordered-button" type="button" id="dropdownMenu1" data-bs-toggle="dropdown" aria-expanded="false">
           <i aria-hidden="true" class="icon" data-feather="eye"></i> Learner View <i data-feather="chevron-down"></i>
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         <h1>Other database tools</h1>
         <p>Last updated on 2023-05-02 |
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+<section><h2 class="section-heading" id="other-database-tools">Other database tools<a class="anchor" aria-label="anchor" href="#other-database-tools"></a>
+<a class="anchor" aria-label="anchor" href="#other-database-tools"></a></h2>
 <hr class="half-width"><p>For this lesson, <a href="https://sqlitebrowser.org" class="external-link">DB Browser</a>,
 a free open source database tool was used, but there are other tools
 available, both proprietary and open. A helpful <a href="https://en.wikipedia.org/wiki/Comparison_of_database_tools" class="external-link">comparison
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         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
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         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
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         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
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         <h1>Extra challenges (optional)</h1>
         <p>Last updated on 2024-03-26 |
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 <hr class="half-width"><p>SQL queries help us <em>ask</em> specific <em>questions</em> which we
 want to answer about our data. The real skill with SQL is to know how to
 translate our questions into a sensible SQL queries (and subsequently
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@@ -620,7 +620,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
           Previous: Other database tools
         </a>
         <a class="chapter-link float-end" href="Bonus_GoodStyle.html" rel="next">
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+          Next: Good Style...
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       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/11-extra-challenges.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
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         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
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         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
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@@ -667,7 +667,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
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+  "datePublished": "2024-07-09"
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               </div>
             </div>
             <hr class="half-width resources"><a href="https://librarycarpentry.github.io/lc-sql/aio.html" class="external-link">See all in one page</a>
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             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
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@@ -373,8 +373,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
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         <h1>Page not found</h1>
         
-<section id="our-apologies"><h2 class="section-heading">Our apologies!<a class="anchor" aria-label="anchor" href="#our-apologies"></a>
-</h2>
+<section><h2 class="section-heading" id="our-apologies">Our apologies!<a class="anchor" aria-label="anchor" href="#our-apologies"></a>
+<a class="anchor" aria-label="anchor" href="#our-apologies"></a></h2>
 <hr class="half-width"><p>We cannot seem to find the page you are looking for. Here are some
 tips that may help:</p>
 <ol style="list-style-type: decimal"><li>try going back to the <a href="javascript:history.back()">previous
@@ -396,18 +396,18 @@ <h1>Page not found</h1>
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/README.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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@@ -431,8 +431,8 @@ <h1>Page not found</h1>
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   "identifier": "https://librarycarpentry.github.io/lc-sql/404.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-07-02",
-  "datePublished": "2024-07-02"
+  "dateModified": "2024-07-09",
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
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@@ -46,7 +46,7 @@
             </li>
           </ul></li>
       </div>
-      
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       <div class="dropdown" id="instructor-dropdown">
         <button class="btn btn-secondary dropdown-toggle bordered-button" type="button" id="dropdownMenu1" data-bs-toggle="dropdown" aria-expanded="false">
           <i aria-hidden="true" class="icon" data-feather="eye"></i> Learner View <i data-feather="chevron-down"></i>
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         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
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@@ -261,7 +261,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="08-database-design.html">8. Database design</a>
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               </div>
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             <hr class="half-width resources"><a href="aio.html">See all in one page</a>
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             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
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             </div>
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       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Good Style</h1>
         <p>Last updated on 2024-03-26 |
-        
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         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/Bonus_GoodStyle.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
-        
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           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
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@@ -407,14 +407,14 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="an-introduction-to-good-style"><h2 class="section-heading">An Introduction to good style<a class="anchor" aria-label="anchor" href="#an-introduction-to-good-style"></a>
-</h2>
+<section><h2 class="section-heading" id="an-introduction-to-good-style">An Introduction to good style<a class="anchor" aria-label="anchor" href="#an-introduction-to-good-style"></a>
+<a class="anchor" aria-label="anchor" href="#an-introduction-to-good-style"></a></h2>
 <hr class="half-width"><p>There are many ways to write an SQL queries, but some look better
 than others. Abiding by good style guidelines will make your SQL queries
 easier to read, especially if you are sharing them with others. These
 are some quick tips for making your SQL look clean.</p>
-</section><section id="pick-column-names-that-are-precise-and-short"><h2 class="section-heading">Pick column names that are precise and short<a class="anchor" aria-label="anchor" href="#pick-column-names-that-are-precise-and-short"></a>
-</h2>
+</section><section><h2 class="section-heading" id="pick-column-names-that-are-precise-and-short">Pick column names that are precise and short<a class="anchor" aria-label="anchor" href="#pick-column-names-that-are-precise-and-short"></a>
+<a class="anchor" aria-label="anchor" href="#pick-column-names-that-are-precise-and-short"></a></h2>
 <hr class="half-width"><p>When choosing column names, it’s important to remember that a large
 part of what you type in your query will be composed of your column
 names. Choosing a column name that is one or two words (without any
@@ -422,8 +422,8 @@ <h3 class="card-title">Objectives</h3>
 you include spaces in your column names, you will get an error message
 when you try to run your queries, so we would recommend using CamelCase,
 or An_Underscore.</p>
-</section><section id="capitalization-sometimes-matters"><h2 class="section-heading">Capitalization (sometimes) matters<a class="anchor" aria-label="anchor" href="#capitalization-sometimes-matters"></a>
-</h2>
+</section><section><h2 class="section-heading" id="capitalization-sometimes-matters">Capitalization (sometimes) matters<a class="anchor" aria-label="anchor" href="#capitalization-sometimes-matters"></a>
+<a class="anchor" aria-label="anchor" href="#capitalization-sometimes-matters"></a></h2>
 <hr class="half-width"><p>In section two, we talked about SQL keywords/commands being
 case-insensitive (“We have capitalised the words SELECT and FROM because
 they are SQL keywords. This makes no difference to the SQL interpreter
@@ -431,8 +431,8 @@ <h3 class="card-title">Objectives</h3>
 considered good style.”). But did you know that in some SQL programs,
 depending on the settings, table and column names are case sensitive? If
 your query isn’t working, check the capitalization.</p>
-</section><section id="readability"><h2 class="section-heading">Readability<a class="anchor" aria-label="anchor" href="#readability"></a>
-</h2>
+</section><section><h2 class="section-heading" id="readability">Readability<a class="anchor" aria-label="anchor" href="#readability"></a>
+<a class="anchor" aria-label="anchor" href="#readability"></a></h2>
 <hr class="half-width"><p>As you may have noticed, we are able to write our query on one line,
 or on many. The general consensus with SQL is that if you can break it
 into components on multiple lines, it becomes easier to read. Using
@@ -493,18 +493,18 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/Bonus_GoodStyle.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
 			</div>
@@ -529,7 +529,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-sql/Bonus_GoodStyle.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-03-26",
-  "datePublished": "2024-07-02"
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index d7949975..e3a00ddb 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -46,7 +46,7 @@
             </li>
           </ul></li>
       </div>
-      
+
       <div class="dropdown" id="instructor-dropdown">
         <button class="btn btn-secondary dropdown-toggle bordered-button" type="button" id="dropdownMenu1" data-bs-toggle="dropdown" aria-expanded="false">
           <i aria-hidden="true" class="icon" data-feather="eye"></i> Learner View <i data-feather="chevron-down"></i>
@@ -170,7 +170,7 @@ <h2 class="accordion-header" id="flush-headingNine">
                 </div><!--/div.accordion-flush-->
               </div><!--div.sidenav-view-selector -->
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           <div class="accordion accordion-flush" id="accordionFlush11">
@@ -189,7 +189,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Setup</a>
     </div><!--/div.accordion-header-->
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     <div class="accordion-header" id="flush-heading2">
         <a href="01-introduction.html">1. Introduction to SQL</a>
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         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
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         <a href="03-filtering.html">3. Filtering</a>
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     <div class="accordion-header" id="flush-heading5">
         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
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         <h1>Contributor Code of Conduct</h1>
         <p>Last updated on 2023-05-02 |
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         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
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         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/CODE_OF_CONDUCT.md" class="external-link">Edit on GitHub</a>
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         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
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 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
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diff --git a/LICENSE.html b/LICENSE.html
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         <h1>Licenses</h1>
         <p>Last updated on 2023-05-02 |
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 <hr class="half-width"><p>All Carpentries (Software Carpentry, Data Carpentry, and Library
 Carpentry) instructional material is made available under the <a href="https://creativecommons.org/licenses/by/4.0/" class="external-link">Creative Commons
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 permissions necessary for your intended use. For example, other rights
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 of <a href="https://communityin.org/" class="external-link">Community Initiatives</a>.</p>
@@ -454,18 +454,18 @@ <h1>Licenses</h1>
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/LICENSE.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
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 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
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+
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   "dateCreated": "2018-04-12",
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             <hr class="half-width resources">
 <a href="aio.html">See all in one page</a>
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 <section id="aio-01-introduction"><p>Content from <a href="01-introduction.html">Introduction to SQL</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
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         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/01-introduction.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
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 </div>
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@@ -480,7 +481,8 @@ <h3 class="card-title">Objectives</h3>
 programming languages to let any program interact with databases. There
 are several variants of SQL, but all support the same basic statements
 that we will be covering today.</p>
-</section><section id="relational-databases"><h2 class="section-heading">Relational databases<a class="anchor" aria-label="anchor" href="#relational-databases"></a>
+</section><section><h2 class="section-heading" id="relational-databases">Relational databases<a class="anchor" aria-label="anchor" href="#relational-databases"></a>
+<a class="anchor" aria-label="anchor" href="#relational-databases"></a>
 </h2>
 <hr class="half-width">
 <p>Relational databases consist of one or more tables of data. These
@@ -490,7 +492,8 @@ <h3 class="card-title">Objectives</h3>
 other when a field in one table can be matched to a field in another
 table. SQL <em>queries</em> are the commands that let you look up data
 in a database or make calculations based on columns.</p>
-</section><section id="why-use-sql"><h2 class="section-heading">Why use SQL?<a class="anchor" aria-label="anchor" href="#why-use-sql"></a>
+</section><section><h2 class="section-heading" id="why-use-sql">Why use SQL?<a class="anchor" aria-label="anchor" href="#why-use-sql"></a>
+<a class="anchor" aria-label="anchor" href="#why-use-sql"></a>
 </h2>
 <hr class="half-width">
 <p>SQL is well established and has been around since the 1970s. It is
@@ -508,8 +511,9 @@ <h3 class="card-title">Objectives</h3>
 Amazon) run on a SQL (relational) database. Understanding SQL is the
 first step in eventually building custom web applications that can serve
 data to users.</p>
-</section><section id="why-are-people-working-in-library--and-information-related-roles-well-suited-to-sql"><h2 class="section-heading">Why are people working in library- and information-related roles
+</section><section><h2 class="section-heading" id="why-are-people-working-in-library--and-information-related-roles-well-suited-to-sql">Why are people working in library- and information-related roles
 well suited to SQL?<a class="anchor" aria-label="anchor" href="#why-are-people-working-in-library--and-information-related-roles-well-suited-to-sql"></a>
+<a class="anchor" aria-label="anchor" href="#why-are-people-working-in-library--and-information-related-roles-well-suited-to-sql"></a>
 </h2>
 <hr class="half-width">
 <p>Library work is about information management. As library workers, we
@@ -566,7 +570,8 @@ <h3 class="callout-title">What are some of the uses for SQL in libraries?<a clas
 </div>
 </div>
 </div>
-</section><section id="database-management-systems"><h2 class="section-heading">Database Management Systems<a class="anchor" aria-label="anchor" href="#database-management-systems"></a>
+</section><section><h2 class="section-heading" id="database-management-systems">Database Management Systems<a class="anchor" aria-label="anchor" href="#database-management-systems"></a>
+<a class="anchor" aria-label="anchor" href="#database-management-systems"></a>
 </h2>
 <hr class="half-width">
 <p>There are a number of different database management systems for
@@ -575,7 +580,8 @@ <h3 class="callout-title">What are some of the uses for SQL in libraries?<a clas
 systems as well (e.g., MySQL, PostgreSQL, MS Access, Filemaker Pro). The
 only things that will differ are the details of exactly how to import
 and export data and possibly some differences in datatype.</p>
-</section><section id="introduction-to-db-browser-for-sqlite"><h2 class="section-heading">Introduction to DB Browser for SQLite<a class="anchor" aria-label="anchor" href="#introduction-to-db-browser-for-sqlite"></a>
+</section><section><h2 class="section-heading" id="introduction-to-db-browser-for-sqlite">Introduction to DB Browser for SQLite<a class="anchor" aria-label="anchor" href="#introduction-to-db-browser-for-sqlite"></a>
+<a class="anchor" aria-label="anchor" href="#introduction-to-db-browser-for-sqlite"></a>
 </h2>
 <hr class="half-width">
 <p>Let’s all open the database we downloaded via the setup in DB Browser
@@ -601,7 +607,8 @@ <h3 class="callout-title">What are some of the uses for SQL in libraries?<a clas
 <li>Click “OK” to import the data. If the table name matches an existing
 table and the number of columns match, DB Browser will ask if you want
 to add the data to the existing table.</li>
-</ol></section><section id="dataset-description"><h2 class="section-heading">Dataset Description<a class="anchor" aria-label="anchor" href="#dataset-description"></a>
+</ol></section><section><h2 class="section-heading" id="dataset-description">Dataset Description<a class="anchor" aria-label="anchor" href="#dataset-description"></a>
+<a class="anchor" aria-label="anchor" href="#dataset-description"></a>
 </h2>
 <hr class="half-width">
 <p>The data we will use was created from 5 csv files that contain tables
@@ -659,13 +666,15 @@ <h3 class="callout-title">What are some of the uses for SQL in libraries?<a clas
 <li>(2 fields, 6 records)</li>
 <li>Field names: <code>id</code>, <code>Publisher</code>
 </li>
-</ul></section><section id="a-note-about-data-types"><h2 class="section-heading">A Note About Data Types<a class="anchor" aria-label="anchor" href="#a-note-about-data-types"></a>
+</ul></section><section><h2 class="section-heading" id="a-note-about-data-types">A Note About Data Types<a class="anchor" aria-label="anchor" href="#a-note-about-data-types"></a>
+<a class="anchor" aria-label="anchor" href="#a-note-about-data-types"></a>
 </h2>
 <hr class="half-width">
 <p>The main data types that are used in doaj-article-sample database are
 <code>INTEGER</code> and <code>TEXT</code> which define what value the
 table column can hold.</p>
-</section><section id="sql-data-type-quick-reference"><h2 class="section-heading">SQL Data Type Quick Reference<a class="anchor" aria-label="anchor" href="#sql-data-type-quick-reference"></a>
+</section><section><h2 class="section-heading" id="sql-data-type-quick-reference">SQL Data Type Quick Reference<a class="anchor" aria-label="anchor" href="#sql-data-type-quick-reference"></a>
+<a class="anchor" aria-label="anchor" href="#sql-data-type-quick-reference"></a>
 </h2>
 <hr class="half-width">
 <p>Different database software/platforms have different names and
@@ -752,7 +761,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-02-selecting-sorting-data"><p>Content from <a href="02-selecting-sorting-data.html">Selecting and sorting data</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/02-selecting-sorting-data.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
@@ -788,7 +797,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="what-is-a-query"><h2 class="section-heading">What is a query?<a class="anchor" aria-label="anchor" href="#what-is-a-query"></a>
+<section><h2 class="section-heading" id="what-is-a-query">What is a query?<a class="anchor" aria-label="anchor" href="#what-is-a-query"></a>
+<a class="anchor" aria-label="anchor" href="#what-is-a-query"></a>
 </h2>
 <hr class="half-width">
 <p>A query is a question or request for data. For example, “How many
@@ -797,7 +807,8 @@ <h3 class="card-title">Objectives</h3>
 is called a statement. Some of the most useful queries - the ones we are
 introducing in this first section - are used to return results from a
 table that match specific criteria.</p>
-</section><section id="writing-my-first-query"><h2 class="section-heading">Writing my first query<a class="anchor" aria-label="anchor" href="#writing-my-first-query"></a>
+</section><section><h2 class="section-heading" id="writing-my-first-query">Writing my first query<a class="anchor" aria-label="anchor" href="#writing-my-first-query"></a>
+<a class="anchor" aria-label="anchor" href="#writing-my-first-query"></a>
 </h2>
 <hr class="half-width">
 <p>Let’s start by opening DB Browser for SQLite and the
@@ -814,7 +825,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 <pre class="sourceCode sql" tabindex="0"><code class="sourceCode sql"><span id="cb1-1"><a href="#cb1-1" tabindex="-1"></a><span class="kw">SELECT</span> title</span>
 <span id="cb1-2"><a href="#cb1-2" tabindex="-1"></a><span class="kw">FROM</span> articles;</span></code></pre>
 </div>
-</section><section id="capitalization-and-good-style"><h2 class="section-heading">Capitalization and good style<a class="anchor" aria-label="anchor" href="#capitalization-and-good-style"></a>
+</section><section><h2 class="section-heading" id="capitalization-and-good-style">Capitalization and good style<a class="anchor" aria-label="anchor" href="#capitalization-and-good-style"></a>
+<a class="anchor" aria-label="anchor" href="#capitalization-and-good-style"></a>
 </h2>
 <hr class="half-width">
 <p>In the first query above, we have capitalized the words
@@ -856,7 +868,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 <pre class="sourceCode sql" tabindex="0"><code class="sourceCode sql"><span id="cb5-1"><a href="#cb5-1" tabindex="-1"></a><span class="kw">SELECT</span> <span class="op">*</span></span>
 <span id="cb5-2"><a href="#cb5-2" tabindex="-1"></a><span class="kw">FROM</span> articles;</span></code></pre>
 </div>
-</section><section id="unique-values"><h2 class="section-heading">Unique values<a class="anchor" aria-label="anchor" href="#unique-values"></a>
+</section><section><h2 class="section-heading" id="unique-values">Unique values<a class="anchor" aria-label="anchor" href="#unique-values"></a>
+<a class="anchor" aria-label="anchor" href="#unique-values"></a>
 </h2>
 <hr class="half-width">
 <p>There may be a situation when you need to retrieve unique records and
@@ -879,7 +892,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 <pre class="sourceCode sql" tabindex="0"><code class="sourceCode sql"><span id="cb7-1"><a href="#cb7-1" tabindex="-1"></a><span class="kw">SELECT</span> <span class="kw">DISTINCT</span> ISSNs, <span class="dt">Day</span>, <span class="dt">Month</span>, <span class="dt">Year</span></span>
 <span id="cb7-2"><a href="#cb7-2" tabindex="-1"></a><span class="kw">FROM</span> articles;</span></code></pre>
 </div>
-</section><section id="sorting"><h2 class="section-heading">Sorting<a class="anchor" aria-label="anchor" href="#sorting"></a>
+</section><section><h2 class="section-heading" id="sorting">Sorting<a class="anchor" aria-label="anchor" href="#sorting"></a>
+<a class="anchor" aria-label="anchor" href="#sorting"></a>
 </h2>
 <hr class="half-width">
 <p>We can also sort the results of our queries by using the keyword
@@ -968,7 +982,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-03-filtering"><p>Content from <a href="03-filtering.html">Filtering</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/03-filtering.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
@@ -1003,7 +1017,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="filtering"><h2 class="section-heading">Filtering<a class="anchor" aria-label="anchor" href="#filtering"></a>
+<section><h2 class="section-heading" id="filtering">Filtering<a class="anchor" aria-label="anchor" href="#filtering"></a>
+<a class="anchor" aria-label="anchor" href="#filtering"></a>
 </h2>
 <hr class="half-width">
 <p>SQL is a powerful tool for filtering data in databases based on a set
@@ -1122,7 +1137,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-04-ordering-commenting"><p>Content from <a href="04-ordering-commenting.html">Ordering and commenting</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/04-ordering-commenting.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
@@ -1154,7 +1169,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="order-of-execution"><h2 class="section-heading">Order of execution<a class="anchor" aria-label="anchor" href="#order-of-execution"></a>
+<section><h2 class="section-heading" id="order-of-execution">Order of execution<a class="anchor" aria-label="anchor" href="#order-of-execution"></a>
+<a class="anchor" aria-label="anchor" href="#order-of-execution"></a>
 </h2>
 <hr class="half-width">
 <p>Let’s say we had the following query:</p>
@@ -1191,7 +1207,8 @@ <h3 class="callout-title">The computer is basically doing this:<a class="anchor"
 <code>FROM</code>, <code>WHERE</code>, then <code>ORDER BY</code>. It is
 possible to write a query as a single line, but for readability, we
 recommend to put each clause on its own line.</p>
-</section><section id="complex-queries-commenting"><h2 class="section-heading">Complex queries &amp; commenting<a class="anchor" aria-label="anchor" href="#complex-queries-commenting"></a>
+</section><section><h2 class="section-heading" id="complex-queries-commenting">Complex queries &amp; commenting<a class="anchor" aria-label="anchor" href="#complex-queries-commenting"></a>
+<a class="anchor" aria-label="anchor" href="#complex-queries-commenting"></a>
 </h2>
 <hr class="half-width">
 <p>The goal is to make a query easy to read and understand, even when
@@ -1277,7 +1294,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-05-aggregating-calculating"><p>Content from <a href="05-aggregating-calculating.html">Aggregating and calculating values</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/05-aggregating-calculating.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
@@ -1311,7 +1328,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="aggregation"><h2 class="section-heading">Aggregation<a class="anchor" aria-label="anchor" href="#aggregation"></a>
+<section><h2 class="section-heading" id="aggregation">Aggregation<a class="anchor" aria-label="anchor" href="#aggregation"></a>
+<a class="anchor" aria-label="anchor" href="#aggregation"></a>
 </h2>
 <hr class="half-width">
 <p>SQL contains functions which allow you to make calculations on data
@@ -1370,7 +1388,7 @@ <h3 class="callout-title">Challenge<a class="anchor" aria-label="anchor" href="#
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb3">
 <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1384,7 +1402,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 </div>
 </div>
 </div>
-</section><section id="the-having-keyword"><h2 class="section-heading">The <code>HAVING</code> keyword<a class="anchor" aria-label="anchor" href="#the-having-keyword"></a>
+</section><section><h2 class="section-heading" id="the-having-keyword">The <code>HAVING</code> keyword<a class="anchor" aria-label="anchor" href="#the-having-keyword"></a>
+<a class="anchor" aria-label="anchor" href="#the-having-keyword"></a>
 </h2>
 <hr class="half-width">
 <p>SQL offers a mechanism to filter the results based on aggregate
@@ -1430,7 +1449,7 @@ <h3 class="callout-title">Challenge<a class="anchor" aria-label="anchor" href="#
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb5">
 <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1444,7 +1463,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 </div>
 </div>
 </div>
-</section><section id="calculations"><h2 class="section-heading">Calculations<a class="anchor" aria-label="anchor" href="#calculations"></a>
+</section><section><h2 class="section-heading" id="calculations">Calculations<a class="anchor" aria-label="anchor" href="#calculations"></a>
+<a class="anchor" aria-label="anchor" href="#calculations"></a>
 </h2>
 <hr class="half-width">
 <p>In SQL, we can also perform calculations as we query the database.
@@ -1489,7 +1509,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-06-joins-aliases"><p>Content from <a href="06-joins-aliases.html">Joins and aliases</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/06-joins-aliases.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
@@ -1522,7 +1542,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="joins"><h2 class="section-heading">Joins<a class="anchor" aria-label="anchor" href="#joins"></a>
+<section><h2 class="section-heading" id="joins">Joins<a class="anchor" aria-label="anchor" href="#joins"></a>
+<a class="anchor" aria-label="anchor" href="#joins"></a>
 </h2>
 <hr class="half-width">
 <p>The SQL <code>JOIN</code> clause allows us to combine columns from
@@ -1680,7 +1701,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 <p>There are different types of joins which you can learn more about at
 <a href="https://www.geeksforgeeks.org/sql-join-set-1-inner-left-right-and-full-joins/" class="external-link">SQL
 Joins Explained</a>.</p>
-</section><section id="aliases"><h2 class="section-heading">Aliases<a class="anchor" aria-label="anchor" href="#aliases"></a>
+</section><section><h2 class="section-heading" id="aliases">Aliases<a class="anchor" aria-label="anchor" href="#aliases"></a>
+<a class="anchor" aria-label="anchor" href="#aliases"></a>
 </h2>
 <hr class="half-width">
 <p>As queries get more complex, names can get long and unwieldy. To help
@@ -1736,7 +1758,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-07-saving-queries"><p>Content from <a href="07-saving-queries.html">Saving queries</a></p>
 <hr>
 <p>Last updated on 2023-05-02 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/07-saving-queries.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
@@ -1768,7 +1790,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="saving-queries-for-future-use"><h2 class="section-heading">Saving queries for future use<a class="anchor" aria-label="anchor" href="#saving-queries-for-future-use"></a>
+<section><h2 class="section-heading" id="saving-queries-for-future-use">Saving queries for future use<a class="anchor" aria-label="anchor" href="#saving-queries-for-future-use"></a>
+<a class="anchor" aria-label="anchor" href="#saving-queries-for-future-use"></a>
 </h2>
 <hr class="half-width">
 <p>It is not uncommon to repeat the same operation more than once, for
@@ -1865,7 +1888,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-08-database-design"><p>Content from <a href="08-database-design.html">Database design</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/08-database-design.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
@@ -1896,7 +1919,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="spreadsheets"><h2 class="section-heading">Spreadsheets<a class="anchor" aria-label="anchor" href="#spreadsheets"></a>
+<section><h2 class="section-heading" id="spreadsheets">Spreadsheets<a class="anchor" aria-label="anchor" href="#spreadsheets"></a>
+<a class="anchor" aria-label="anchor" href="#spreadsheets"></a>
 </h2>
 <hr class="half-width">
 <p>In libraries, spreadsheets are often created to keep lists of a
@@ -1932,7 +1956,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Answers
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>The data in the “Language” column is formatted in two ways, as an
@@ -1955,7 +1979,8 @@ <h4 class="accordion-header" id="headingSolution1">
 queries to find these issues and address them across your entire
 dataset. Before you can take advantage of all of these tools, you need
 to design your database.</p>
-</section><section id="database-design"><h2 class="section-heading">Database Design<a class="anchor" aria-label="anchor" href="#database-design"></a>
+</section><section><h2 class="section-heading" id="database-design">Database Design<a class="anchor" aria-label="anchor" href="#database-design"></a>
+<a class="anchor" aria-label="anchor" href="#database-design"></a>
 </h2>
 <hr class="half-width">
 <p>Database design involves a model or plan developed to determine how
@@ -1963,7 +1988,8 @@ <h4 class="accordion-header" id="headingSolution1">
 data will be stored, how they will be classified, and the
 interrelationships between the data across different tables in the
 database.</p>
-</section><section id="terminology"><h2 class="section-heading">Terminology<a class="anchor" aria-label="anchor" href="#terminology"></a>
+</section><section><h2 class="section-heading" id="terminology">Terminology<a class="anchor" aria-label="anchor" href="#terminology"></a>
+<a class="anchor" aria-label="anchor" href="#terminology"></a>
 </h2>
 <hr class="half-width">
 <figure><img src="fig/field-record-value.png" alt="Fields, Records, Values" class="figure mx-auto d-block"></figure><p>In the <a href="01-introduction.html">Introduction to SQL</a> lesson,
@@ -1993,7 +2019,8 @@ <h4 class="accordion-header" id="headingSolution1">
 like to capture, along with how the different entities are related to
 each other. We do this using and entity relationship diagram (ER diagram
 or ERD).</p>
-</section><section id="entity-relationship-diagram-er-diagram-or-erd"><h2 class="section-heading">Entity Relationship Diagram (ER Diagram or ERD)<a class="anchor" aria-label="anchor" href="#entity-relationship-diagram-er-diagram-or-erd"></a>
+</section><section><h2 class="section-heading" id="entity-relationship-diagram-er-diagram-or-erd">Entity Relationship Diagram (ER Diagram or ERD)<a class="anchor" aria-label="anchor" href="#entity-relationship-diagram-er-diagram-or-erd"></a>
+<a class="anchor" aria-label="anchor" href="#entity-relationship-diagram-er-diagram-or-erd"></a>
 </h2>
 <hr class="half-width">
 <p>ERDs are helpful tools for visualising and structuring your data more
@@ -2018,7 +2045,8 @@ <h4 class="accordion-header" id="headingSolution1">
 journals are associated with which publisher in a way that keeps the
 integrity of the data (see <a href="#normalisation">the Normalisation
 section</a> below).</p>
-</section><section id="more-terminology"><h2 class="section-heading">More Terminology<a class="anchor" aria-label="anchor" href="#more-terminology"></a>
+</section><section><h2 class="section-heading" id="more-terminology">More Terminology<a class="anchor" aria-label="anchor" href="#more-terminology"></a>
+<a class="anchor" aria-label="anchor" href="#more-terminology"></a>
 </h2>
 <hr class="half-width">
 <p>The degree of relationship between entities is known as their
@@ -2046,7 +2074,8 @@ <h4 class="accordion-header" id="headingSolution1">
 so it will appear multiple times in that field.</p>
 <p>A key attribute is often included when designing databases to
 facilitate joins.</p>
-</section><section id="normalisation"><h2 class="section-heading">Normalisation<a class="anchor" aria-label="anchor" href="#normalisation"></a>
+</section><section><h2 class="section-heading" id="normalisation">Normalisation<a class="anchor" aria-label="anchor" href="#normalisation"></a>
+<a class="anchor" aria-label="anchor" href="#normalisation"></a>
 </h2>
 <hr class="half-width">
 <p>ERDs are helpful in normalising your data which is a process that can
@@ -2084,7 +2113,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Answers
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>An ‘authors’ table can be created with a many-to-many relationship
@@ -2124,7 +2153,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-09-create"><p>Content from <a href="09-create.html">Creating tables and modifying data</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/09-create.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
@@ -2367,7 +2396,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </div></section><section id="aio-10-other-tools"><p>Content from <a href="10-other-tools.html">Other database tools</a></p>
 <hr>
 <p>Last updated on 2023-05-02 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/10-other-tools.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
@@ -2398,7 +2427,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="other-database-tools"><h2 class="section-heading">Other database tools<a class="anchor" aria-label="anchor" href="#other-database-tools"></a>
+<section><h2 class="section-heading" id="other-database-tools">Other database tools<a class="anchor" aria-label="anchor" href="#other-database-tools"></a>
+<a class="anchor" aria-label="anchor" href="#other-database-tools"></a>
 </h2>
 <hr class="half-width">
 <p>For this lesson, <a href="https://sqlitebrowser.org" class="external-link">DB Browser</a>,
@@ -2434,7 +2464,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-11-extra-challenges"><p>Content from <a href="11-extra-challenges.html">Extra challenges (optional)</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/11-extra-challenges.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
@@ -2465,7 +2495,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="extra-challenges-optional"><h2 class="section-heading">Extra challenges (optional)<a class="anchor" aria-label="anchor" href="#extra-challenges-optional"></a>
+<section><h2 class="section-heading" id="extra-challenges-optional">Extra challenges (optional)<a class="anchor" aria-label="anchor" href="#extra-challenges-optional"></a>
+<a class="anchor" aria-label="anchor" href="#extra-challenges-optional"></a>
 </h2>
 <hr class="half-width">
 <p>SQL queries help us <em>ask</em> specific <em>questions</em> which we
@@ -2499,7 +2530,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
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 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb1">
 <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
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   Solution 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
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   Solution 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
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 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb3">
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   Solution 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
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 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb4">
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@@ -2640,7 +2671,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Solution 5
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb5">
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@@ -2675,7 +2706,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-Bonus_GoodStyle"><p>Content from <a href="Bonus_GoodStyle.html">Good Style</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/Bonus_GoodStyle.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
@@ -2706,14 +2737,16 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="an-introduction-to-good-style"><h2 class="section-heading">An Introduction to good style<a class="anchor" aria-label="anchor" href="#an-introduction-to-good-style"></a>
+<section><h2 class="section-heading" id="an-introduction-to-good-style">An Introduction to good style<a class="anchor" aria-label="anchor" href="#an-introduction-to-good-style"></a>
+<a class="anchor" aria-label="anchor" href="#an-introduction-to-good-style"></a>
 </h2>
 <hr class="half-width">
 <p>There are many ways to write an SQL queries, but some look better
 than others. Abiding by good style guidelines will make your SQL queries
 easier to read, especially if you are sharing them with others. These
 are some quick tips for making your SQL look clean.</p>
-</section><section id="pick-column-names-that-are-precise-and-short"><h2 class="section-heading">Pick column names that are precise and short<a class="anchor" aria-label="anchor" href="#pick-column-names-that-are-precise-and-short"></a>
+</section><section><h2 class="section-heading" id="pick-column-names-that-are-precise-and-short">Pick column names that are precise and short<a class="anchor" aria-label="anchor" href="#pick-column-names-that-are-precise-and-short"></a>
+<a class="anchor" aria-label="anchor" href="#pick-column-names-that-are-precise-and-short"></a>
 </h2>
 <hr class="half-width">
 <p>When choosing column names, it’s important to remember that a large
@@ -2723,7 +2756,8 @@ <h3 class="card-title">Objectives</h3>
 you include spaces in your column names, you will get an error message
 when you try to run your queries, so we would recommend using CamelCase,
 or An_Underscore.</p>
-</section><section id="capitalization-sometimes-matters"><h2 class="section-heading">Capitalization (sometimes) matters<a class="anchor" aria-label="anchor" href="#capitalization-sometimes-matters"></a>
+</section><section><h2 class="section-heading" id="capitalization-sometimes-matters">Capitalization (sometimes) matters<a class="anchor" aria-label="anchor" href="#capitalization-sometimes-matters"></a>
+<a class="anchor" aria-label="anchor" href="#capitalization-sometimes-matters"></a>
 </h2>
 <hr class="half-width">
 <p>In section two, we talked about SQL keywords/commands being
@@ -2733,7 +2767,8 @@ <h3 class="card-title">Objectives</h3>
 considered good style.”). But did you know that in some SQL programs,
 depending on the settings, table and column names are case sensitive? If
 your query isn’t working, check the capitalization.</p>
-</section><section id="readability"><h2 class="section-heading">Readability<a class="anchor" aria-label="anchor" href="#readability"></a>
+</section><section><h2 class="section-heading" id="readability">Readability<a class="anchor" aria-label="anchor" href="#readability"></a>
+<a class="anchor" aria-label="anchor" href="#readability"></a>
 </h2>
 <hr class="half-width">
 <p>As you may have noticed, we are able to write our query on one line,
@@ -2787,18 +2822,18 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 <div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/README.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
 			</div>
@@ -2823,8 +2858,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://librarycarpentry.github.io/lc-sql/aio.html",
   "identifier": "https://librarycarpentry.github.io/lc-sql/aio.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-07-02",
-  "datePublished": "2024-07-02"
+  "dateModified": "2024-07-09",
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
diff --git a/discuss.html b/discuss.html
index 0b6a7e50..78953a30 100644
--- a/discuss.html
+++ b/discuss.html
@@ -46,7 +46,7 @@
             </li>
           </ul></li>
       </div>
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+
       <div class="dropdown" id="instructor-dropdown">
         <button class="btn btn-secondary dropdown-toggle bordered-button" type="button" id="dropdownMenu1" data-bs-toggle="dropdown" aria-expanded="false">
           <i aria-hidden="true" class="icon" data-feather="eye"></i> Learner View <i data-feather="chevron-down"></i>
@@ -170,7 +170,7 @@ <h2 class="accordion-header" id="flush-headingNine">
                 </div><!--/div.accordion-flush-->
               </div><!--div.sidenav-view-selector -->
             </div><!--/div.col -->
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     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Setup</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -198,7 +198,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading2">
         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div><!--/div.accordion-header-->
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         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
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         <a href="03-filtering.html">3. Filtering</a>
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         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
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         <a href="05-aggregating-calculating.html">5. Aggregating and calculating values</a>
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     <div class="accordion-header" id="flush-heading8">
         <a href="07-saving-queries.html">7. Saving queries</a>
     </div><!--/div.accordion-header-->
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     <div class="accordion-header" id="flush-heading9">
         <a href="08-database-design.html">8. Database design</a>
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@@ -329,10 +329,10 @@ <h2 class="accordion-header" id="flush-headingTwelve">
               </div>
             </div>
             <hr class="half-width resources"><a href="aio.html">See all in one page</a>
-            
+
 
             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
-            
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             </div>
           </div><!-- /div.accordion -->
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@@ -360,11 +360,11 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Discussion</h1>
         <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/learners/discuss.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
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         </div>
@@ -403,18 +403,18 @@ <h1>Discussion</h1>
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/learners/discuss.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
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   "identifier": "https://librarycarpentry.github.io/lc-sql/discuss.html",
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+  "datePublished": "2024-07-09"
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diff --git a/images.html b/images.html
index e68d795a..51439c3e 100644
--- a/images.html
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@@ -65,7 +65,7 @@
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@@ -204,7 +204,7 @@ <h2 class="accordion-header" id="flush-headingNine">
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             </div>
 <!--/div.col -->
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+
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         <a href="index.html">Summary and Setup</a>
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 <!--/div.accordion-header-->
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+
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@@ -238,7 +238,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div>
 <!--/div.accordion-header-->
-        
+
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 <!--/div.accordion-item-->
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         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
     </div>
 <!--/div.accordion-header-->
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+
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         <a href="03-filtering.html">3. Filtering</a>
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 <!--/div.accordion-header-->
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+
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         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
     </div>
 <!--/div.accordion-header-->
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         <a href="05-aggregating-calculating.html">5. Aggregating and calculating values</a>
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 <!--/div.accordion-header-->
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         <a href="06-joins-aliases.html">6. Joins and aliases</a>
     </div>
 <!--/div.accordion-header-->
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         <a href="07-saving-queries.html">7. Saving queries</a>
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 <!--/div.accordion-header-->
-        
+
   </div>
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         <a href="08-database-design.html">8. Database design</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
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         <a href="09-create.html">9. Creating tables and modifying data</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
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         <a href="10-other-tools.html">10. Other database tools</a>
     </div>
 <!--/div.accordion-header-->
-        
+
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 <!--/div.accordion-item-->
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         <a href="11-extra-challenges.html">11. Extra challenges (optional)</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
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         <a href="Bonus_GoodStyle.html">12. Good Style</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
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             </div>
             <hr class="half-width resources">
 <a href="aio.html">See all in one page</a>
-            
+
 
             <hr class="d-none d-sm-block d-md-none">
 <div class="d-grid gap-1">
-            
+
             </div>
           </div>
 <!-- /div.accordion -->
@@ -480,18 +480,18 @@ <h3 id="08-database-design-figure-4">Figure 4</h3>
 <div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/README.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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   "identifier": "https://librarycarpentry.github.io/lc-sql/images.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-07-02",
-  "datePublished": "2024-07-02"
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 }
 
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diff --git a/index.html b/index.html
index 1939e18b..ea3d52dc 100644
--- a/index.html
+++ b/index.html
@@ -46,7 +46,7 @@
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+
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+
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         </ul></div><!--/div.accordion-body-->
     </div><!--/div.accordion-collapse-->
-        
+
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     <div class="accordion-header" id="flush-heading2">
         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -220,7 +220,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -229,7 +229,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="03-filtering.html">3. Filtering</a>
     </div><!--/div.accordion-header-->
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+
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@@ -238,7 +238,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
     </div><!--/div.accordion-header-->
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+
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@@ -247,7 +247,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="05-aggregating-calculating.html">5. Aggregating and calculating values</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -256,7 +256,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="06-joins-aliases.html">6. Joins and aliases</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
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@@ -265,7 +265,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="07-saving-queries.html">7. Saving queries</a>
     </div><!--/div.accordion-header-->
-        
+
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@@ -274,7 +274,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="08-database-design.html">8. Database design</a>
     </div><!--/div.accordion-header-->
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+
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@@ -283,7 +283,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="09-create.html">9. Creating tables and modifying data</a>
     </div><!--/div.accordion-header-->
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@@ -292,7 +292,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="10-other-tools.html">10. Other database tools</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
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         <a href="11-extra-challenges.html">11. Extra challenges (optional)</a>
     </div><!--/div.accordion-header-->
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   </div><!--/div.accordion-item-->
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@@ -310,7 +310,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="Bonus_GoodStyle.html">12. Good Style</a>
     </div><!--/div.accordion-header-->
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+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -342,10 +342,10 @@ <h2 class="accordion-header" id="flush-headingTwelve">
               </div>
             </div>
             <hr class="half-width resources"><a href="aio.html">See all in one page</a>
-            
+
 
             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
-            
+
             </div>
           </div><!-- /div.accordion -->
         </div><!-- /div.sidebar-inner -->
@@ -369,10 +369,10 @@ <h2 class="accordion-header" id="flush-headingTwelve">
 you will: understand what SQLite does; use SQLite to summarise and link
 data.</p>
 
-      <section id="setup"><section id="software-requirements"><h2 class="section-heading">Software Requirements<a class="anchor" aria-label="anchor" href="#software-requirements"></a>
-</h2>
-<hr class="half-width"></section><section id="db-browser-for-sqlite"><h2 class="section-heading">DB Browser for SQLite<a class="anchor" aria-label="anchor" href="#db-browser-for-sqlite"></a>
-</h2>
+      <section id="setup"><section><h2 class="section-heading" id="software-requirements">Software Requirements<a class="anchor" aria-label="anchor" href="#software-requirements"></a>
+<a class="anchor" aria-label="anchor" href="#software-requirements"></a></h2>
+<hr class="half-width"></section><section><h2 class="section-heading" id="db-browser-for-sqlite">DB Browser for SQLite<a class="anchor" aria-label="anchor" href="#db-browser-for-sqlite"></a>
+<a class="anchor" aria-label="anchor" href="#db-browser-for-sqlite"></a></h2>
 <hr class="half-width"><p>You will need to install <a href="https://sqlitebrowser.org" class="external-link">DB
 Browser for SQLite</a> to complete these lessons. DB Browser for SQLite
 provides a graphical user interface for connecting to and interacting
@@ -423,8 +423,8 @@ <h3 id="import-the-sql-file">Import the SQL file<a class="anchor" aria-label="an
 changes made to the database file…”.</li>
 <li>Click “Save”.</li>
 </ol></div>
-</section><section id="alternatives-sqlite-and-sqliteonline"><h2 class="section-heading">Alternatives: SQLite and SqliteOnline<a class="anchor" aria-label="anchor" href="#alternatives-sqlite-and-sqliteonline"></a>
-</h2>
+</section><section><h2 class="section-heading" id="alternatives-sqlite-and-sqliteonline">Alternatives: SQLite and SqliteOnline<a class="anchor" aria-label="anchor" href="#alternatives-sqlite-and-sqliteonline"></a>
+<a class="anchor" aria-label="anchor" href="#alternatives-sqlite-and-sqliteonline"></a></h2>
 <hr class="half-width"><div class="section level3">
 <h3 id="sqlite">SQLite<a class="anchor" aria-label="anchor" href="#sqlite"></a></h3>
 <p>This step is optional. If you are completing the tutorial with DB
@@ -490,18 +490,18 @@ <h4 id="open-the-sql-file-in-sqliteonline">Open the SQL file in SqliteOnline<a c
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/index.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
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   "identifier": "https://librarycarpentry.github.io/lc-sql/index.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-07-02",
-  "datePublished": "2024-07-02"
+  "dateModified": "2024-07-09",
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
diff --git a/instructor-notes.html b/instructor-notes.html
index f5d8ba44..ac25f9f5 100644
--- a/instructor-notes.html
+++ b/instructor-notes.html
@@ -65,7 +65,7 @@
           </ul>
 </li>
       </div>
-      
+
       <div class="dropdown" id="instructor-dropdown">
         <button class="btn btn-secondary dropdown-toggle bordered-button" type="button" id="dropdownMenu1" data-bs-toggle="dropdown" aria-expanded="false">
           <i aria-hidden="true" class="icon" data-feather="eye"></i> Learner View <i data-feather="chevron-down"></i>
@@ -204,7 +204,7 @@ <h2 class="accordion-header" id="flush-headingNine">
 <!--div.sidenav-view-selector -->
             </div>
 <!--/div.col -->
-      
+
             <hr>
 </div>
 <!--/div.mobile-row -->
@@ -226,7 +226,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="index.html">Summary and Setup</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -238,7 +238,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -250,7 +250,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -262,7 +262,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="03-filtering.html">3. Filtering</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -274,7 +274,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -286,7 +286,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="05-aggregating-calculating.html">5. Aggregating and calculating values</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -298,7 +298,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="06-joins-aliases.html">6. Joins and aliases</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -310,7 +310,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="07-saving-queries.html">7. Saving queries</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -322,7 +322,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="08-database-design.html">8. Database design</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -334,7 +334,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="09-create.html">9. Creating tables and modifying data</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
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             <hr class="half-width resources">
 <a href="aio.html">See all in one page</a>
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@@ -552,18 +552,18 @@ <h2 id="resources">Resources<a class="anchor" aria-label="anchor" href="#resourc
 <div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/README.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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@@ -588,8 +588,8 @@ <h2 id="resources">Resources<a class="anchor" aria-label="anchor" href="#resourc
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   "identifier": "https://librarycarpentry.github.io/lc-sql/instructor-notes.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-07-02",
-  "datePublished": "2024-07-02"
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@@ -46,7 +46,7 @@
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         </span>
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@@ -218,7 +218,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         </ul></div><!--/div.accordion-body-->
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         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
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         <a href="03-filtering.html">3. Filtering</a>
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           Home
         </a>
         <a class="chapter-link float-end" href="../instructor/02-selecting-sorting-data.html" rel="next">
-          Next: Selecting and... 
+          Next: Selecting and...
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       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Introduction to SQL</h1>
         <p>Last updated on 2024-03-26 |
-        
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         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/01-introduction.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
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           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
         </div>
@@ -419,8 +419,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="what-is-sql"><h2 class="section-heading">What is SQL?<a class="anchor" aria-label="anchor" href="#what-is-sql"></a>
-</h2>
+<section><h2 class="section-heading" id="what-is-sql">What is SQL?<a class="anchor" aria-label="anchor" href="#what-is-sql"></a>
+<a class="anchor" aria-label="anchor" href="#what-is-sql"></a></h2>
 <hr class="half-width"><p><strong>S</strong>tructured <strong>Q</strong>uery
 <strong>L</strong>anguage, or SQL (sometimes pronounced “sequel”), is a
 powerful language used to interrogate and manipulate relational
@@ -429,8 +429,8 @@ <h3 class="card-title">Objectives</h3>
 programming languages to let any program interact with databases. There
 are several variants of SQL, but all support the same basic statements
 that we will be covering today.</p>
-</section><section id="relational-databases"><h2 class="section-heading">Relational databases<a class="anchor" aria-label="anchor" href="#relational-databases"></a>
-</h2>
+</section><section><h2 class="section-heading" id="relational-databases">Relational databases<a class="anchor" aria-label="anchor" href="#relational-databases"></a>
+<a class="anchor" aria-label="anchor" href="#relational-databases"></a></h2>
 <hr class="half-width"><p>Relational databases consist of one or more tables of data. These
 tables have <em>fields</em> (columns) and <em>records</em> (rows). Every
 field has a data <em>type</em>. Every value in the same field of each
@@ -438,8 +438,8 @@ <h3 class="card-title">Objectives</h3>
 other when a field in one table can be matched to a field in another
 table. SQL <em>queries</em> are the commands that let you look up data
 in a database or make calculations based on columns.</p>
-</section><section id="why-use-sql"><h2 class="section-heading">Why use SQL?<a class="anchor" aria-label="anchor" href="#why-use-sql"></a>
-</h2>
+</section><section><h2 class="section-heading" id="why-use-sql">Why use SQL?<a class="anchor" aria-label="anchor" href="#why-use-sql"></a>
+<a class="anchor" aria-label="anchor" href="#why-use-sql"></a></h2>
 <hr class="half-width"><p>SQL is well established and has been around since the 1970s. It is
 still widely used in a variety of settings.</p>
 <p>SQL lets you keep the data separate from the analysis. There is no
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 Amazon) run on a SQL (relational) database. Understanding SQL is the
 first step in eventually building custom web applications that can serve
 data to users.</p>
-</section><section id="why-are-people-working-in-library--and-information-related-roles-well-suited-to-sql"><h2 class="section-heading">Why are people working in library- and information-related roles
+</section><section><h2 class="section-heading" id="why-are-people-working-in-library--and-information-related-roles-well-suited-to-sql">Why are people working in library- and information-related roles
 well suited to SQL?<a class="anchor" aria-label="anchor" href="#why-are-people-working-in-library--and-information-related-roles-well-suited-to-sql"></a>
-</h2>
+<a class="anchor" aria-label="anchor" href="#why-are-people-working-in-library--and-information-related-roles-well-suited-to-sql"></a></h2>
 <hr class="half-width"><p>Library work is about information management. As library workers, we
 help sort and organise information, and we help people find information.
 Most of us go through mediated queries to help people find the
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 </ul></div>
 </div>
 </div>
-</section><section id="database-management-systems"><h2 class="section-heading">Database Management Systems<a class="anchor" aria-label="anchor" href="#database-management-systems"></a>
-</h2>
+</section><section><h2 class="section-heading" id="database-management-systems">Database Management Systems<a class="anchor" aria-label="anchor" href="#database-management-systems"></a>
+<a class="anchor" aria-label="anchor" href="#database-management-systems"></a></h2>
 <hr class="half-width"><p>There are a number of different database management systems for
 working with relational data. We’re going to use SQLite today, but
 basically everything we teach you will apply to the other database
 systems as well (e.g., MySQL, PostgreSQL, MS Access, Filemaker Pro). The
 only things that will differ are the details of exactly how to import
 and export data and possibly some differences in datatype.</p>
-</section><section id="introduction-to-db-browser-for-sqlite"><h2 class="section-heading">Introduction to DB Browser for SQLite<a class="anchor" aria-label="anchor" href="#introduction-to-db-browser-for-sqlite"></a>
-</h2>
+</section><section><h2 class="section-heading" id="introduction-to-db-browser-for-sqlite">Introduction to DB Browser for SQLite<a class="anchor" aria-label="anchor" href="#introduction-to-db-browser-for-sqlite"></a>
+<a class="anchor" aria-label="anchor" href="#introduction-to-db-browser-for-sqlite"></a></h2>
 <hr class="half-width"><p>Let’s all open the database we downloaded via the setup in DB Browser
 for SQLite.</p>
 <p>You can see the tables in the database by looking at the left hand
@@ -538,8 +538,8 @@ <h3 class="callout-title">What are some of the uses for SQL in libraries?<a clas
 <li>Click “OK” to import the data. If the table name matches an existing
 table and the number of columns match, DB Browser will ask if you want
 to add the data to the existing table.</li>
-</ol></section><section id="dataset-description"><h2 class="section-heading">Dataset Description<a class="anchor" aria-label="anchor" href="#dataset-description"></a>
-</h2>
+</ol></section><section><h2 class="section-heading" id="dataset-description">Dataset Description<a class="anchor" aria-label="anchor" href="#dataset-description"></a>
+<a class="anchor" aria-label="anchor" href="#dataset-description"></a></h2>
 <hr class="half-width"><p>The data we will use was created from 5 csv files that contain tables
 of article titles, journals, languages, licences, and publishers. The
 information in these tables are from a sample of 51 different journals
@@ -586,13 +586,13 @@ <h3 class="callout-title">What are some of the uses for SQL in libraries?<a clas
 <li>(2 fields, 6 records)</li>
 <li>Field names: <code>id</code>, <code>Publisher</code>
 </li>
-</ul></section><section id="a-note-about-data-types"><h2 class="section-heading">A Note About Data Types<a class="anchor" aria-label="anchor" href="#a-note-about-data-types"></a>
-</h2>
+</ul></section><section><h2 class="section-heading" id="a-note-about-data-types">A Note About Data Types<a class="anchor" aria-label="anchor" href="#a-note-about-data-types"></a>
+<a class="anchor" aria-label="anchor" href="#a-note-about-data-types"></a></h2>
 <hr class="half-width"><p>The main data types that are used in doaj-article-sample database are
 <code>INTEGER</code> and <code>TEXT</code> which define what value the
 table column can hold.</p>
-</section><section id="sql-data-type-quick-reference"><h2 class="section-heading">SQL Data Type Quick Reference<a class="anchor" aria-label="anchor" href="#sql-data-type-quick-reference"></a>
-</h2>
+</section><section><h2 class="section-heading" id="sql-data-type-quick-reference">SQL Data Type Quick Reference<a class="anchor" aria-label="anchor" href="#sql-data-type-quick-reference"></a>
+<a class="anchor" aria-label="anchor" href="#sql-data-type-quick-reference"></a></h2>
 <hr class="half-width"><p>Different database software/platforms have different names and
 sometimes different definitions of data types, so you’ll need to
 understand the data types for any platform you are using. The following
@@ -661,7 +661,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
           Home
         </a>
         <a class="chapter-link float-end" href="../instructor/02-selecting-sorting-data.html" rel="next">
-          Next: Selecting and... 
+          Next: Selecting and...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
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       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/01-introduction.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
 			</div>
@@ -708,7 +708,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-sql/instructor/01-introduction.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-03-26",
-  "datePublished": "2024-07-02"
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
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+++ b/instructor/02-selecting-sorting-data.html
@@ -46,7 +46,7 @@
             </li>
           </ul></li>
       </div>
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         <button class="btn btn-secondary dropdown-toggle bordered-button" type="button" id="dropdownMenu1" data-bs-toggle="dropdown" aria-expanded="false">
           <i aria-hidden="true" class="icon" data-feather="eye"></i> Instructor View <i data-feather="chevron-down"></i>
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         <a href="index.html">Summary and Schedule</a>
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         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div><!--/div.accordion-header-->
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@@ -222,7 +222,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
 <li><a href="#sorting">Sorting</a></li>
         </ul></div><!--/div.accordion-body-->
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         <a href="03-filtering.html">3. Filtering</a>
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 </div><!--/div.accordion-flush-->
 
@@ -240,7 +240,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading5">
         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
     </div><!--/div.accordion-header-->
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     <div class="accordion-header" id="flush-heading6">
         <a href="05-aggregating-calculating.html">5. Aggregating and calculating values</a>
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     <div class="accordion-header" id="flush-heading7">
         <a href="06-joins-aliases.html">6. Joins and aliases</a>
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@@ -267,7 +267,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading8">
         <a href="07-saving-queries.html">7. Saving queries</a>
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@@ -276,7 +276,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading9">
         <a href="08-database-design.html">8. Database design</a>
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@@ -285,7 +285,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading10">
         <a href="09-create.html">9. Creating tables and modifying data</a>
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@@ -294,7 +294,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="10-other-tools.html">10. Other database tools</a>
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@@ -303,7 +303,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="11-extra-challenges.html">11. Extra challenges (optional)</a>
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@@ -312,7 +312,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="Bonus_GoodStyle.html">12. Good Style</a>
     </div><!--/div.accordion-header-->
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@@ -344,10 +344,10 @@ <h2 class="accordion-header" id="flush-headingTwelve">
               </div>
             </div>
             <hr class="half-width resources"><a href="../instructor/aio.html">See all in one page</a>
-            
+
 
             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
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             </div>
           </div><!-- /div.accordion -->
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@@ -368,20 +368,20 @@ <h2 class="accordion-header" id="flush-headingTwelve">
           Previous: Introduction to SQL
         </a>
         <a class="chapter-link float-end" href="../instructor/03-filtering.html" rel="next">
-          Next: Filtering... 
+          Next: Filtering...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Selecting and sorting data</h1>
         <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/02-selecting-sorting-data.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
-        
-        
-        
+
+
+
         <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 20 minutes</p>
-        
+
         <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
         </div>
@@ -415,16 +415,16 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="what-is-a-query"><h2 class="section-heading">What is a query?<a class="anchor" aria-label="anchor" href="#what-is-a-query"></a>
-</h2>
+<section><h2 class="section-heading" id="what-is-a-query">What is a query?<a class="anchor" aria-label="anchor" href="#what-is-a-query"></a>
+<a class="anchor" aria-label="anchor" href="#what-is-a-query"></a></h2>
 <hr class="half-width"><p>A query is a question or request for data. For example, “How many
 journals does our library subscribe to?”. When we query a database, we
 can ask the same question using Structured Query Language (SQL) in what
 is called a statement. Some of the most useful queries - the ones we are
 introducing in this first section - are used to return results from a
 table that match specific criteria.</p>
-</section><section id="writing-my-first-query"><h2 class="section-heading">Writing my first query<a class="anchor" aria-label="anchor" href="#writing-my-first-query"></a>
-</h2>
+</section><section><h2 class="section-heading" id="writing-my-first-query">Writing my first query<a class="anchor" aria-label="anchor" href="#writing-my-first-query"></a>
+<a class="anchor" aria-label="anchor" href="#writing-my-first-query"></a></h2>
 <hr class="half-width"><p>Let’s start by opening DB Browser for SQLite and the
 doaj-article-sample database (see <a href="/">Setup</a>). Click “Browse
 Data” and select the <code>articles</code> table in the “Table” dropdown
@@ -439,8 +439,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 <pre class="sourceCode sql" tabindex="0"><code class="sourceCode sql"><span id="cb1-1"><a href="#cb1-1" tabindex="-1"></a><span class="kw">SELECT</span> title</span>
 <span id="cb1-2"><a href="#cb1-2" tabindex="-1"></a><span class="kw">FROM</span> articles;</span></code></pre>
 </div>
-</section><section id="capitalization-and-good-style"><h2 class="section-heading">Capitalization and good style<a class="anchor" aria-label="anchor" href="#capitalization-and-good-style"></a>
-</h2>
+</section><section><h2 class="section-heading" id="capitalization-and-good-style">Capitalization and good style<a class="anchor" aria-label="anchor" href="#capitalization-and-good-style"></a>
+<a class="anchor" aria-label="anchor" href="#capitalization-and-good-style"></a></h2>
 <hr class="half-width"><p>In the first query above, we have capitalized the words
 <code>SELECT</code> and <code>FROM</code> because they are SQL keywords.
 Even though capitalization makes no difference to the SQL interpreter,
@@ -480,8 +480,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 <pre class="sourceCode sql" tabindex="0"><code class="sourceCode sql"><span id="cb5-1"><a href="#cb5-1" tabindex="-1"></a><span class="kw">SELECT</span> <span class="op">*</span></span>
 <span id="cb5-2"><a href="#cb5-2" tabindex="-1"></a><span class="kw">FROM</span> articles;</span></code></pre>
 </div>
-</section><section id="unique-values"><h2 class="section-heading">Unique values<a class="anchor" aria-label="anchor" href="#unique-values"></a>
-</h2>
+</section><section><h2 class="section-heading" id="unique-values">Unique values<a class="anchor" aria-label="anchor" href="#unique-values"></a>
+<a class="anchor" aria-label="anchor" href="#unique-values"></a></h2>
 <hr class="half-width"><p>There may be a situation when you need to retrieve unique records and
 not multiple duplicate records. The SQL <code>DISTINCT</code> keyword is
 used after <code>SELECT</code> to eliminate duplicate records and fetch
@@ -502,8 +502,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 <pre class="sourceCode sql" tabindex="0"><code class="sourceCode sql"><span id="cb7-1"><a href="#cb7-1" tabindex="-1"></a><span class="kw">SELECT</span> <span class="kw">DISTINCT</span> ISSNs, <span class="dt">Day</span>, <span class="dt">Month</span>, <span class="dt">Year</span></span>
 <span id="cb7-2"><a href="#cb7-2" tabindex="-1"></a><span class="kw">FROM</span> articles;</span></code></pre>
 </div>
-</section><section id="sorting"><h2 class="section-heading">Sorting<a class="anchor" aria-label="anchor" href="#sorting"></a>
-</h2>
+</section><section><h2 class="section-heading" id="sorting">Sorting<a class="anchor" aria-label="anchor" href="#sorting"></a>
+<a class="anchor" aria-label="anchor" href="#sorting"></a></h2>
 <hr class="half-width"><p>We can also sort the results of our queries by using the keyword
 <code>ORDER BY</code>. Let’s create a query that sorts the articles
 table in ascending order by ISSNs using the <code>ASC</code> keyword in
@@ -597,7 +597,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
           Previous: Introduction to SQL
         </a>
         <a class="chapter-link float-end" href="../instructor/03-filtering.html" rel="next">
-          Next: Filtering... 
+          Next: Filtering...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
@@ -608,18 +608,18 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/02-selecting-sorting-data.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
 			</div>
@@ -644,7 +644,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-sql/instructor/02-selecting-sorting-data.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-03-26",
-  "datePublished": "2024-07-02"
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
diff --git a/instructor/03-filtering.html b/instructor/03-filtering.html
index 3cb905f6..8799c74b 100644
--- a/instructor/03-filtering.html
+++ b/instructor/03-filtering.html
@@ -46,7 +46,7 @@
             </li>
           </ul></li>
       </div>
-      
+
       <div class="dropdown" id="instructor-dropdown">
         <button class="btn btn-secondary dropdown-toggle bordered-button" type="button" id="dropdownMenu1" data-bs-toggle="dropdown" aria-expanded="false">
           <i aria-hidden="true" class="icon" data-feather="eye"></i> Instructor View <i data-feather="chevron-down"></i>
@@ -170,7 +170,7 @@ <h2 class="accordion-header" id="flush-headingNine">
                 </div><!--/div.accordion-flush-->
               </div><!--div.sidenav-view-selector -->
             </div><!--/div.col -->
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+
             <hr></div><!--/div.mobile-row -->
 
           <div class="accordion accordion-flush" id="accordionFlush11">
@@ -189,7 +189,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Schedule</a>
     </div><!--/div.accordion-header-->
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+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -198,7 +198,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading2">
         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div><!--/div.accordion-header-->
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+
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 </div><!--/div.accordion-flush-->
 
@@ -207,7 +207,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading3">
         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
     </div><!--/div.accordion-header-->
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   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -221,13 +221,13 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         </span>
       </button>
     </div><!--/div.accordion-header-->
-        
+
     <div id="flush-collapsecurrent" class="accordion-collapse collapse show" aria-labelledby="flush-headingcurrent" data-bs-parent="#accordionFlushcurrent">
       <div class="accordion-body">
         <ul><li><a href="#filtering">Filtering</a></li>
         </ul></div><!--/div.accordion-body-->
     </div><!--/div.accordion-collapse-->
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+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -236,7 +236,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading5">
         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -245,7 +245,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading6">
         <a href="05-aggregating-calculating.html">5. Aggregating and calculating values</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -254,7 +254,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading7">
         <a href="06-joins-aliases.html">6. Joins and aliases</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -263,7 +263,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading8">
         <a href="07-saving-queries.html">7. Saving queries</a>
     </div><!--/div.accordion-header-->
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+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -272,7 +272,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading9">
         <a href="08-database-design.html">8. Database design</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -281,7 +281,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading10">
         <a href="09-create.html">9. Creating tables and modifying data</a>
     </div><!--/div.accordion-header-->
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@@ -290,7 +290,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading11">
         <a href="10-other-tools.html">10. Other database tools</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -299,7 +299,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading12">
         <a href="11-extra-challenges.html">11. Extra challenges (optional)</a>
     </div><!--/div.accordion-header-->
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+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -308,7 +308,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading13">
         <a href="Bonus_GoodStyle.html">12. Good Style</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -340,10 +340,10 @@ <h2 class="accordion-header" id="flush-headingTwelve">
               </div>
             </div>
             <hr class="half-width resources"><a href="../instructor/aio.html">See all in one page</a>
-            
+
 
             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
-            
+
             </div>
           </div><!-- /div.accordion -->
         </div><!-- /div.sidebar-inner -->
@@ -364,20 +364,20 @@ <h2 class="accordion-header" id="flush-headingTwelve">
           Previous: Selecting and
         </a>
         <a class="chapter-link float-end" href="../instructor/04-ordering-commenting.html" rel="next">
-          Next: Ordering and... 
+          Next: Ordering and...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Filtering</h1>
         <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/03-filtering.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
-        
-        
-        
+
+
+
         <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 30 minutes</p>
-        
+
         <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
         </div>
@@ -410,8 +410,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="filtering"><h2 class="section-heading">Filtering<a class="anchor" aria-label="anchor" href="#filtering"></a>
-</h2>
+<section><h2 class="section-heading" id="filtering">Filtering<a class="anchor" aria-label="anchor" href="#filtering"></a>
+<a class="anchor" aria-label="anchor" href="#filtering"></a></h2>
 <hr class="half-width"><p>SQL is a powerful tool for filtering data in databases based on a set
 of conditions. Let’s say we only want data for a specific ISSN, for
 instance, for the <em>Acta Crystallographica</em> journal from the
@@ -535,7 +535,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
           Previous: Selecting and
         </a>
         <a class="chapter-link float-end" href="../instructor/04-ordering-commenting.html" rel="next">
-          Next: Ordering and... 
+          Next: Ordering and...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
@@ -546,18 +546,18 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/03-filtering.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
 			</div>
@@ -582,7 +582,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-sql/instructor/03-filtering.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-03-26",
-  "datePublished": "2024-07-02"
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
diff --git a/instructor/04-ordering-commenting.html b/instructor/04-ordering-commenting.html
index 074440a9..5f6269ce 100644
--- a/instructor/04-ordering-commenting.html
+++ b/instructor/04-ordering-commenting.html
@@ -46,7 +46,7 @@
             </li>
           </ul></li>
       </div>
-      
+
       <div class="dropdown" id="instructor-dropdown">
         <button class="btn btn-secondary dropdown-toggle bordered-button" type="button" id="dropdownMenu1" data-bs-toggle="dropdown" aria-expanded="false">
           <i aria-hidden="true" class="icon" data-feather="eye"></i> Instructor View <i data-feather="chevron-down"></i>
@@ -170,7 +170,7 @@ <h2 class="accordion-header" id="flush-headingNine">
                 </div><!--/div.accordion-flush-->
               </div><!--div.sidenav-view-selector -->
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@@ -189,7 +189,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Schedule</a>
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@@ -198,7 +198,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading2">
         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div><!--/div.accordion-header-->
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     <div class="accordion-header" id="flush-heading3">
         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
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     <div class="accordion-header" id="flush-heading4">
         <a href="03-filtering.html">3. Filtering</a>
     </div><!--/div.accordion-header-->
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@@ -230,14 +230,14 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         </span>
       </button>
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+
     <div id="flush-collapsecurrent" class="accordion-collapse collapse show" aria-labelledby="flush-headingcurrent" data-bs-parent="#accordionFlushcurrent">
       <div class="accordion-body">
         <ul><li><a href="#order-of-execution">Order of execution</a></li>
 <li><a href="#complex-queries-commenting">Complex queries &amp; commenting</a></li>
         </ul></div><!--/div.accordion-body-->
     </div><!--/div.accordion-collapse-->
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@@ -246,7 +246,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading6">
         <a href="05-aggregating-calculating.html">5. Aggregating and calculating values</a>
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@@ -255,7 +255,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="06-joins-aliases.html">6. Joins and aliases</a>
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         <a href="07-saving-queries.html">7. Saving queries</a>
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         <a href="08-database-design.html">8. Database design</a>
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         <a href="09-create.html">9. Creating tables and modifying data</a>
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         <a href="10-other-tools.html">10. Other database tools</a>
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     <div class="accordion-header" id="flush-heading12">
         <a href="11-extra-challenges.html">11. Extra challenges (optional)</a>
     </div><!--/div.accordion-header-->
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@@ -309,7 +309,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading13">
         <a href="Bonus_GoodStyle.html">12. Good Style</a>
     </div><!--/div.accordion-header-->
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@@ -341,10 +341,10 @@ <h2 class="accordion-header" id="flush-headingTwelve">
               </div>
             </div>
             <hr class="half-width resources"><a href="../instructor/aio.html">See all in one page</a>
-            
+
 
             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
-            
+
             </div>
           </div><!-- /div.accordion -->
         </div><!-- /div.sidebar-inner -->
@@ -365,20 +365,20 @@ <h2 class="accordion-header" id="flush-headingTwelve">
           Previous: Filtering
         </a>
         <a class="chapter-link float-end" href="../instructor/05-aggregating-calculating.html" rel="next">
-          Next: Aggregating and... 
+          Next: Aggregating and...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Ordering and commenting</h1>
         <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/04-ordering-commenting.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
-        
-        
-        
+
+
+
         <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 15 minutes</p>
-        
+
         <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
         </div>
@@ -408,8 +408,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="order-of-execution"><h2 class="section-heading">Order of execution<a class="anchor" aria-label="anchor" href="#order-of-execution"></a>
-</h2>
+<section><h2 class="section-heading" id="order-of-execution">Order of execution<a class="anchor" aria-label="anchor" href="#order-of-execution"></a>
+<a class="anchor" aria-label="anchor" href="#order-of-execution"></a></h2>
 <hr class="half-width"><p>Let’s say we had the following query:</p>
 <div class="codewrapper sourceCode" id="cb1">
 <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -442,8 +442,8 @@ <h3 class="callout-title">The computer is basically doing this:<a class="anchor"
 <code>FROM</code>, <code>WHERE</code>, then <code>ORDER BY</code>. It is
 possible to write a query as a single line, but for readability, we
 recommend to put each clause on its own line.</p>
-</section><section id="complex-queries-commenting"><h2 class="section-heading">Complex queries &amp; commenting<a class="anchor" aria-label="anchor" href="#complex-queries-commenting"></a>
-</h2>
+</section><section><h2 class="section-heading" id="complex-queries-commenting">Complex queries &amp; commenting<a class="anchor" aria-label="anchor" href="#complex-queries-commenting"></a>
+<a class="anchor" aria-label="anchor" href="#complex-queries-commenting"></a></h2>
 <hr class="half-width"><p>The goal is to make a query easy to read and understand, even when
 the logic becomes complex. This can be handled in two ways:</p>
 <ol style="list-style-type: decimal"><li>Rewriting the query so that the logic is easy to follow</li>
@@ -532,7 +532,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
           Previous: Filtering
         </a>
         <a class="chapter-link float-end" href="../instructor/05-aggregating-calculating.html" rel="next">
-          Next: Aggregating and... 
+          Next: Aggregating and...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
@@ -543,18 +543,18 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/04-ordering-commenting.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
 			</div>
@@ -579,7 +579,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-sql/instructor/04-ordering-commenting.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-03-26",
-  "datePublished": "2024-07-02"
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
diff --git a/instructor/05-aggregating-calculating.html b/instructor/05-aggregating-calculating.html
index 2785f057..76435603 100644
--- a/instructor/05-aggregating-calculating.html
+++ b/instructor/05-aggregating-calculating.html
@@ -46,7 +46,7 @@
             </li>
           </ul></li>
       </div>
-      
+
       <div class="dropdown" id="instructor-dropdown">
         <button class="btn btn-secondary dropdown-toggle bordered-button" type="button" id="dropdownMenu1" data-bs-toggle="dropdown" aria-expanded="false">
           <i aria-hidden="true" class="icon" data-feather="eye"></i> Instructor View <i data-feather="chevron-down"></i>
@@ -170,7 +170,7 @@ <h2 class="accordion-header" id="flush-headingNine">
                 </div><!--/div.accordion-flush-->
               </div><!--div.sidenav-view-selector -->
             </div><!--/div.col -->
-      
+
             <hr></div><!--/div.mobile-row -->
 
           <div class="accordion accordion-flush" id="accordionFlush11">
@@ -189,7 +189,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Schedule</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -198,7 +198,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading2">
         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div><!--/div.accordion-header-->
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+
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@@ -207,7 +207,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading3">
         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
     </div><!--/div.accordion-header-->
-        
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@@ -216,7 +216,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading4">
         <a href="03-filtering.html">3. Filtering</a>
     </div><!--/div.accordion-header-->
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+
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 </div><!--/div.accordion-flush-->
 
@@ -225,7 +225,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading5">
         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
     </div><!--/div.accordion-header-->
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+
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@@ -239,7 +239,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         </span>
       </button>
     </div><!--/div.accordion-header-->
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+
     <div id="flush-collapsecurrent" class="accordion-collapse collapse show" aria-labelledby="flush-headingcurrent" data-bs-parent="#accordionFlushcurrent">
       <div class="accordion-body">
         <ul><li><a href="#aggregation">Aggregation</a></li>
@@ -247,7 +247,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
 <li><a href="#calculations">Calculations</a></li>
         </ul></div><!--/div.accordion-body-->
     </div><!--/div.accordion-collapse-->
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@@ -256,7 +256,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="06-joins-aliases.html">6. Joins and aliases</a>
     </div><!--/div.accordion-header-->
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+
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@@ -265,7 +265,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading8">
         <a href="07-saving-queries.html">7. Saving queries</a>
     </div><!--/div.accordion-header-->
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+
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 </div><!--/div.accordion-flush-->
 
@@ -274,7 +274,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading9">
         <a href="08-database-design.html">8. Database design</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -283,7 +283,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading10">
         <a href="09-create.html">9. Creating tables and modifying data</a>
     </div><!--/div.accordion-header-->
-        
+
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 </div><!--/div.accordion-flush-->
 
@@ -292,7 +292,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading11">
         <a href="10-other-tools.html">10. Other database tools</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -301,7 +301,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading12">
         <a href="11-extra-challenges.html">11. Extra challenges (optional)</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -310,7 +310,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading13">
         <a href="Bonus_GoodStyle.html">12. Good Style</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -342,10 +342,10 @@ <h2 class="accordion-header" id="flush-headingTwelve">
               </div>
             </div>
             <hr class="half-width resources"><a href="../instructor/aio.html">See all in one page</a>
-            
+
 
             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
-            
+
             </div>
           </div><!-- /div.accordion -->
         </div><!-- /div.sidebar-inner -->
@@ -366,20 +366,20 @@ <h2 class="accordion-header" id="flush-headingTwelve">
           Previous: Ordering and
         </a>
         <a class="chapter-link float-end" href="../instructor/06-joins-aliases.html" rel="next">
-          Next: Joins and aliases... 
+          Next: Joins and aliases...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Aggregating and calculating values</h1>
         <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/05-aggregating-calculating.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
-        
-        
-        
+
+
+
         <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 20 minutes</p>
-        
+
         <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
         </div>
@@ -411,8 +411,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="aggregation"><h2 class="section-heading">Aggregation<a class="anchor" aria-label="anchor" href="#aggregation"></a>
-</h2>
+<section><h2 class="section-heading" id="aggregation">Aggregation<a class="anchor" aria-label="anchor" href="#aggregation"></a>
+<a class="anchor" aria-label="anchor" href="#aggregation"></a></h2>
 <hr class="half-width"><p>SQL contains functions which allow you to make calculations on data
 in your database for reports. Some of the most common functions are
 <code>MAX, MIN, AVG, COUNT, SUM</code>, and they will: <code>MAX</code>
@@ -469,7 +469,7 @@ <h3 class="callout-title">Challenge<a class="anchor" aria-label="anchor" href="#
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb3">
 <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -483,8 +483,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 </div>
 </div>
 </div>
-</section><section id="the-having-keyword"><h2 class="section-heading">The <code>HAVING</code> keyword<a class="anchor" aria-label="anchor" href="#the-having-keyword"></a>
-</h2>
+</section><section><h2 class="section-heading" id="the-having-keyword">The <code>HAVING</code> keyword<a class="anchor" aria-label="anchor" href="#the-having-keyword"></a>
+<a class="anchor" aria-label="anchor" href="#the-having-keyword"></a></h2>
 <hr class="half-width"><p>SQL offers a mechanism to filter the results based on aggregate
 functions, through the <code>HAVING</code> keyword.</p>
 <p>For example, we can adapt the last request we wrote to only return
@@ -528,7 +528,7 @@ <h3 class="callout-title">Challenge<a class="anchor" aria-label="anchor" href="#
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb5">
 <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -542,8 +542,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 </div>
 </div>
 </div>
-</section><section id="calculations"><h2 class="section-heading">Calculations<a class="anchor" aria-label="anchor" href="#calculations"></a>
-</h2>
+</section><section><h2 class="section-heading" id="calculations">Calculations<a class="anchor" aria-label="anchor" href="#calculations"></a>
+<a class="anchor" aria-label="anchor" href="#calculations"></a></h2>
 <hr class="half-width"><p>In SQL, we can also perform calculations as we query the database.
 Also known as computed columns, we can use expressions on a column or
 multiple columns to get new values during our query. For example, what
@@ -593,7 +593,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
           Previous: Ordering and
         </a>
         <a class="chapter-link float-end" href="../instructor/06-joins-aliases.html" rel="next">
-          Next: Joins and aliases... 
+          Next: Joins and aliases...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
@@ -604,18 +604,18 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/05-aggregating-calculating.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
 			</div>
@@ -640,7 +640,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-sql/instructor/05-aggregating-calculating.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-03-26",
-  "datePublished": "2024-07-02"
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
diff --git a/instructor/06-joins-aliases.html b/instructor/06-joins-aliases.html
index dbcda04b..7a195ff3 100644
--- a/instructor/06-joins-aliases.html
+++ b/instructor/06-joins-aliases.html
@@ -46,7 +46,7 @@
             </li>
           </ul></li>
       </div>
-      
+
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           <i aria-hidden="true" class="icon" data-feather="eye"></i> Instructor View <i data-feather="chevron-down"></i>
@@ -170,7 +170,7 @@ <h2 class="accordion-header" id="flush-headingNine">
                 </div><!--/div.accordion-flush-->
               </div><!--div.sidenav-view-selector -->
             </div><!--/div.col -->
-      
+
             <hr></div><!--/div.mobile-row -->
 
           <div class="accordion accordion-flush" id="accordionFlush11">
@@ -189,7 +189,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Schedule</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -198,7 +198,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading2">
         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -207,7 +207,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading3">
         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -216,7 +216,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading4">
         <a href="03-filtering.html">3. Filtering</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -225,7 +225,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading5">
         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -234,7 +234,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading6">
         <a href="05-aggregating-calculating.html">5. Aggregating and calculating values</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -248,14 +248,14 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         </span>
       </button>
     </div><!--/div.accordion-header-->
-        
+
     <div id="flush-collapsecurrent" class="accordion-collapse collapse show" aria-labelledby="flush-headingcurrent" data-bs-parent="#accordionFlushcurrent">
       <div class="accordion-body">
         <ul><li><a href="#joins">Joins</a></li>
 <li><a href="#aliases">Aliases</a></li>
         </ul></div><!--/div.accordion-body-->
     </div><!--/div.accordion-collapse-->
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+
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@@ -264,7 +264,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading8">
         <a href="07-saving-queries.html">7. Saving queries</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -273,7 +273,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading9">
         <a href="08-database-design.html">8. Database design</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -282,7 +282,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading10">
         <a href="09-create.html">9. Creating tables and modifying data</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -291,7 +291,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading11">
         <a href="10-other-tools.html">10. Other database tools</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -300,7 +300,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading12">
         <a href="11-extra-challenges.html">11. Extra challenges (optional)</a>
     </div><!--/div.accordion-header-->
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+
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 </div><!--/div.accordion-flush-->
 
@@ -309,7 +309,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading13">
         <a href="Bonus_GoodStyle.html">12. Good Style</a>
     </div><!--/div.accordion-header-->
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+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -341,10 +341,10 @@ <h2 class="accordion-header" id="flush-headingTwelve">
               </div>
             </div>
             <hr class="half-width resources"><a href="../instructor/aio.html">See all in one page</a>
-            
+
 
             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
-            
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             </div>
           </div><!-- /div.accordion -->
         </div><!-- /div.sidebar-inner -->
@@ -365,20 +365,20 @@ <h2 class="accordion-header" id="flush-headingTwelve">
           Previous: Aggregating and
         </a>
         <a class="chapter-link float-end" href="../instructor/07-saving-queries.html" rel="next">
-          Next: Saving queries... 
+          Next: Saving queries...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Joins and aliases</h1>
         <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/06-joins-aliases.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
-        
-        
-        
+
+
+
         <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 45 minutes</p>
-        
+
         <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
         </div>
@@ -409,8 +409,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="joins"><h2 class="section-heading">Joins<a class="anchor" aria-label="anchor" href="#joins"></a>
-</h2>
+<section><h2 class="section-heading" id="joins">Joins<a class="anchor" aria-label="anchor" href="#joins"></a>
+<a class="anchor" aria-label="anchor" href="#joins"></a></h2>
 <hr class="half-width"><p>The SQL <code>JOIN</code> clause allows us to combine columns from
 one or more tables in a database by using values common to each. It
 follows the <code>FROM</code> clause in a SQL statement. We also need to
@@ -566,8 +566,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 <p>There are different types of joins which you can learn more about at
 <a href="https://www.geeksforgeeks.org/sql-join-set-1-inner-left-right-and-full-joins/" class="external-link">SQL
 Joins Explained</a>.</p>
-</section><section id="aliases"><h2 class="section-heading">Aliases<a class="anchor" aria-label="anchor" href="#aliases"></a>
-</h2>
+</section><section><h2 class="section-heading" id="aliases">Aliases<a class="anchor" aria-label="anchor" href="#aliases"></a>
+<a class="anchor" aria-label="anchor" href="#aliases"></a></h2>
 <hr class="half-width"><p>As queries get more complex, names can get long and unwieldy. To help
 make things clearer we can use aliases to assign new names to items in
 the query.</p>
@@ -628,7 +628,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
           Previous: Aggregating and
         </a>
         <a class="chapter-link float-end" href="../instructor/07-saving-queries.html" rel="next">
-          Next: Saving queries... 
+          Next: Saving queries...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
@@ -639,18 +639,18 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/06-joins-aliases.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
 			</div>
@@ -675,7 +675,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-sql/instructor/06-joins-aliases.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-03-26",
-  "datePublished": "2024-07-02"
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
diff --git a/instructor/07-saving-queries.html b/instructor/07-saving-queries.html
index 7f2b5ddb..5fe45af3 100644
--- a/instructor/07-saving-queries.html
+++ b/instructor/07-saving-queries.html
@@ -46,7 +46,7 @@
             </li>
           </ul></li>
       </div>
-      
+
       <div class="dropdown" id="instructor-dropdown">
         <button class="btn btn-secondary dropdown-toggle bordered-button" type="button" id="dropdownMenu1" data-bs-toggle="dropdown" aria-expanded="false">
           <i aria-hidden="true" class="icon" data-feather="eye"></i> Instructor View <i data-feather="chevron-down"></i>
@@ -170,7 +170,7 @@ <h2 class="accordion-header" id="flush-headingNine">
                 </div><!--/div.accordion-flush-->
               </div><!--div.sidenav-view-selector -->
             </div><!--/div.col -->
-      
+
             <hr></div><!--/div.mobile-row -->
 
           <div class="accordion accordion-flush" id="accordionFlush11">
@@ -189,7 +189,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Schedule</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -198,7 +198,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading2">
         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -207,7 +207,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading3">
         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -216,7 +216,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading4">
         <a href="03-filtering.html">3. Filtering</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -225,7 +225,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading5">
         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -234,7 +234,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading6">
         <a href="05-aggregating-calculating.html">5. Aggregating and calculating values</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -243,7 +243,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading7">
         <a href="06-joins-aliases.html">6. Joins and aliases</a>
     </div><!--/div.accordion-header-->
-        
+
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 </div><!--/div.accordion-flush-->
 
@@ -257,13 +257,13 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         </span>
       </button>
     </div><!--/div.accordion-header-->
-        
+
     <div id="flush-collapsecurrent" class="accordion-collapse collapse show" aria-labelledby="flush-headingcurrent" data-bs-parent="#accordionFlushcurrent">
       <div class="accordion-body">
         <ul><li><a href="#saving-queries-for-future-use">Saving queries for future use</a></li>
         </ul></div><!--/div.accordion-body-->
     </div><!--/div.accordion-collapse-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -272,7 +272,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading9">
         <a href="08-database-design.html">8. Database design</a>
     </div><!--/div.accordion-header-->
-        
+
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 </div><!--/div.accordion-flush-->
 
@@ -281,7 +281,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading10">
         <a href="09-create.html">9. Creating tables and modifying data</a>
     </div><!--/div.accordion-header-->
-        
+
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 </div><!--/div.accordion-flush-->
 
@@ -290,7 +290,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading11">
         <a href="10-other-tools.html">10. Other database tools</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -299,7 +299,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading12">
         <a href="11-extra-challenges.html">11. Extra challenges (optional)</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -308,7 +308,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading13">
         <a href="Bonus_GoodStyle.html">12. Good Style</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -340,10 +340,10 @@ <h2 class="accordion-header" id="flush-headingTwelve">
               </div>
             </div>
             <hr class="half-width resources"><a href="../instructor/aio.html">See all in one page</a>
-            
+
 
             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
-            
+
             </div>
           </div><!-- /div.accordion -->
         </div><!-- /div.sidebar-inner -->
@@ -364,20 +364,20 @@ <h2 class="accordion-header" id="flush-headingTwelve">
           Previous: Joins and aliases
         </a>
         <a class="chapter-link float-end" href="../instructor/08-database-design.html" rel="next">
-          Next: Database design... 
+          Next: Database design...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Saving queries</h1>
         <p>Last updated on 2023-05-02 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/07-saving-queries.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
-        
-        
-        
+
+
+
         <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 30 minutes</p>
-        
+
         <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
         </div>
@@ -407,8 +407,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="saving-queries-for-future-use"><h2 class="section-heading">Saving queries for future use<a class="anchor" aria-label="anchor" href="#saving-queries-for-future-use"></a>
-</h2>
+<section><h2 class="section-heading" id="saving-queries-for-future-use">Saving queries for future use<a class="anchor" aria-label="anchor" href="#saving-queries-for-future-use"></a>
+<a class="anchor" aria-label="anchor" href="#saving-queries-for-future-use"></a></h2>
 <hr class="half-width"><p>It is not uncommon to repeat the same operation more than once, for
 example for monitoring or reporting purposes. SQL comes with a very
 powerful mechanism to do this: views. Views are queries saved in the
@@ -510,7 +510,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
           Previous: Joins and aliases
         </a>
         <a class="chapter-link float-end" href="../instructor/08-database-design.html" rel="next">
-          Next: Database design... 
+          Next: Database design...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
@@ -521,18 +521,18 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/07-saving-queries.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
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@@ -557,7 +557,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-sql/instructor/07-saving-queries.html",
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-  "datePublished": "2024-07-02"
+  "datePublished": "2024-07-09"
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diff --git a/instructor/08-database-design.html b/instructor/08-database-design.html
index 4ad3def0..afe52c34 100644
--- a/instructor/08-database-design.html
+++ b/instructor/08-database-design.html
@@ -46,7 +46,7 @@
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           <i aria-hidden="true" class="icon" data-feather="eye"></i> Instructor View <i data-feather="chevron-down"></i>
@@ -170,7 +170,7 @@ <h2 class="accordion-header" id="flush-headingNine">
                 </div><!--/div.accordion-flush-->
               </div><!--div.sidenav-view-selector -->
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           <div class="accordion accordion-flush" id="accordionFlush11">
@@ -189,7 +189,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Schedule</a>
     </div><!--/div.accordion-header-->
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   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -198,7 +198,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading2">
         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -207,7 +207,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
     </div><!--/div.accordion-header-->
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@@ -216,7 +216,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading4">
         <a href="03-filtering.html">3. Filtering</a>
     </div><!--/div.accordion-header-->
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@@ -225,7 +225,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading5">
         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
     </div><!--/div.accordion-header-->
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@@ -234,7 +234,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="05-aggregating-calculating.html">5. Aggregating and calculating values</a>
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@@ -252,7 +252,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading8">
         <a href="07-saving-queries.html">7. Saving queries</a>
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@@ -266,7 +266,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         </span>
       </button>
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@@ -277,7 +277,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
 <li><a href="#normalisation">Normalisation</a></li>
         </ul></div><!--/div.accordion-body-->
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         <a href="Bonus_GoodStyle.html">12. Good Style</a>
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               </div>
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             <hr class="half-width resources"><a href="../instructor/aio.html">See all in one page</a>
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             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
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           Previous: Saving queries
         </a>
         <a class="chapter-link float-end" href="../instructor/09-create.html" rel="next">
-          Next: Creating tables and... 
+          Next: Creating tables and...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Database design</h1>
         <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/08-database-design.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
-        
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           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
         </div>
@@ -411,8 +411,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="spreadsheets"><h2 class="section-heading">Spreadsheets<a class="anchor" aria-label="anchor" href="#spreadsheets"></a>
-</h2>
+<section><h2 class="section-heading" id="spreadsheets">Spreadsheets<a class="anchor" aria-label="anchor" href="#spreadsheets"></a>
+<a class="anchor" aria-label="anchor" href="#spreadsheets"></a></h2>
 <hr class="half-width"><p>In libraries, spreadsheets are often created to keep lists of a
 variety of things like an inventory of equipment, reference statistics,
 or items to review for purchase (See <em><a href="01-introduction.html">What are some of the uses for SQL in
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   Answers
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
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 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>The data in the “Language” column is formatted in two ways, as an
 abbreviation and the full word;</li>
@@ -466,15 +466,15 @@ <h4 class="accordion-header" id="headingSolution1">
 queries to find these issues and address them across your entire
 dataset. Before you can take advantage of all of these tools, you need
 to design your database.</p>
-</section><section id="database-design"><h2 class="section-heading">Database Design<a class="anchor" aria-label="anchor" href="#database-design"></a>
-</h2>
+</section><section><h2 class="section-heading" id="database-design">Database Design<a class="anchor" aria-label="anchor" href="#database-design"></a>
+<a class="anchor" aria-label="anchor" href="#database-design"></a></h2>
 <hr class="half-width"><p>Database design involves a model or plan developed to determine how
 the data is stored, organized and manipulated. The design addresses what
 data will be stored, how they will be classified, and the
 interrelationships between the data across different tables in the
 database.</p>
-</section><section id="terminology"><h2 class="section-heading">Terminology<a class="anchor" aria-label="anchor" href="#terminology"></a>
-</h2>
+</section><section><h2 class="section-heading" id="terminology">Terminology<a class="anchor" aria-label="anchor" href="#terminology"></a>
+<a class="anchor" aria-label="anchor" href="#terminology"></a></h2>
 <hr class="half-width"><figure><img src="../fig/field-record-value.png" alt="Fields, Records, Values" class="figure mx-auto d-block"></figure><p>In the <a href="01-introduction.html">Introduction to SQL</a> lesson,
 we introduced the terms “fields”, “records”, and “values”. These terms
 are commonly used in databases while the “columns”, “rows”, and “cells”
@@ -502,8 +502,8 @@ <h4 class="accordion-header" id="headingSolution1">
 like to capture, along with how the different entities are related to
 each other. We do this using and entity relationship diagram (ER diagram
 or ERD).</p>
-</section><section id="entity-relationship-diagram-er-diagram-or-erd"><h2 class="section-heading">Entity Relationship Diagram (ER Diagram or ERD)<a class="anchor" aria-label="anchor" href="#entity-relationship-diagram-er-diagram-or-erd"></a>
-</h2>
+</section><section><h2 class="section-heading" id="entity-relationship-diagram-er-diagram-or-erd">Entity Relationship Diagram (ER Diagram or ERD)<a class="anchor" aria-label="anchor" href="#entity-relationship-diagram-er-diagram-or-erd"></a>
+<a class="anchor" aria-label="anchor" href="#entity-relationship-diagram-er-diagram-or-erd"></a></h2>
 <hr class="half-width"><p>ERDs are helpful tools for visualising and structuring your data more
 efficiently. They allow you to map relationships between concepts and
 ultimately construct a relational database. The following is an ERD of
@@ -526,8 +526,8 @@ <h4 class="accordion-header" id="headingSolution1">
 journals are associated with which publisher in a way that keeps the
 integrity of the data (see <a href="#normalisation">the Normalisation
 section</a> below).</p>
-</section><section id="more-terminology"><h2 class="section-heading">More Terminology<a class="anchor" aria-label="anchor" href="#more-terminology"></a>
-</h2>
+</section><section><h2 class="section-heading" id="more-terminology">More Terminology<a class="anchor" aria-label="anchor" href="#more-terminology"></a>
+<a class="anchor" aria-label="anchor" href="#more-terminology"></a></h2>
 <hr class="half-width"><p>The degree of relationship between entities is known as their
 ‘cardinality’. Using the journals-publishers example, the ‘publishers’
 table contains a primary key (PK) called ‘id’. When the PK is used to
@@ -551,8 +551,8 @@ <h4 class="accordion-header" id="headingSolution1">
 so it will appear multiple times in that field.</p>
 <p>A key attribute is often included when designing databases to
 facilitate joins.</p>
-</section><section id="normalisation"><h2 class="section-heading">Normalisation<a class="anchor" aria-label="anchor" href="#normalisation"></a>
-</h2>
+</section><section><h2 class="section-heading" id="normalisation">Normalisation<a class="anchor" aria-label="anchor" href="#normalisation"></a>
+<a class="anchor" aria-label="anchor" href="#normalisation"></a></h2>
 <hr class="half-width"><p>ERDs are helpful in normalising your data which is a process that can
 be used to create tables and establish relationships between those
 tables with the goal of eliminating redundancy and inconsistencies in
@@ -588,7 +588,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Answers
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>An ‘authors’ table can be created with a many-to-many relationship
 with the ‘articles’ table and an <a href="https://en.wikipedia.org/wiki/Associative_entity" class="external-link">associative
@@ -631,7 +631,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
           Previous: Saving queries
         </a>
         <a class="chapter-link float-end" href="../instructor/09-create.html" rel="next">
-          Next: Creating tables and... 
+          Next: Creating tables and...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
@@ -642,18 +642,18 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/08-database-design.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
 			</div>
@@ -678,7 +678,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-sql/instructor/08-database-design.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-03-26",
-  "datePublished": "2024-07-02"
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
diff --git a/instructor/09-create.html b/instructor/09-create.html
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--- a/instructor/09-create.html
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@@ -46,7 +46,7 @@
             </li>
           </ul></li>
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         <button class="btn btn-secondary dropdown-toggle bordered-button" type="button" id="dropdownMenu1" data-bs-toggle="dropdown" aria-expanded="false">
           <i aria-hidden="true" class="icon" data-feather="eye"></i> Instructor View <i data-feather="chevron-down"></i>
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                 </div><!--/div.accordion-flush-->
               </div><!--div.sidenav-view-selector -->
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           <div class="accordion accordion-flush" id="accordionFlush11">
@@ -189,7 +189,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Schedule</a>
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@@ -198,7 +198,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="01-introduction.html">1. Introduction to SQL</a>
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@@ -207,7 +207,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
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@@ -216,7 +216,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="03-filtering.html">3. Filtering</a>
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@@ -225,7 +225,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading5">
         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
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@@ -234,7 +234,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="05-aggregating-calculating.html">5. Aggregating and calculating values</a>
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@@ -243,7 +243,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading7">
         <a href="06-joins-aliases.html">6. Joins and aliases</a>
     </div><!--/div.accordion-header-->
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@@ -252,7 +252,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading8">
         <a href="07-saving-queries.html">7. Saving queries</a>
     </div><!--/div.accordion-header-->
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@@ -283,7 +283,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading11">
         <a href="10-other-tools.html">10. Other database tools</a>
     </div><!--/div.accordion-header-->
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@@ -292,7 +292,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="11-extra-challenges.html">11. Extra challenges (optional)</a>
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@@ -301,7 +301,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading13">
         <a href="Bonus_GoodStyle.html">12. Good Style</a>
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@@ -333,10 +333,10 @@ <h2 class="accordion-header" id="flush-headingTwelve">
               </div>
             </div>
             <hr class="half-width resources"><a href="../instructor/aio.html">See all in one page</a>
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             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
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@@ -357,20 +357,20 @@ <h2 class="accordion-header" id="flush-headingTwelve">
           Previous: Database design
         </a>
         <a class="chapter-link float-end" href="../instructor/10-other-tools.html" rel="next">
-          Next: Other database tools... 
+          Next: Other database tools...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Creating tables and modifying data</h1>
         <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/09-create.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
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         </div>
@@ -616,7 +616,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
           Previous: Database design
         </a>
         <a class="chapter-link float-end" href="../instructor/10-other-tools.html" rel="next">
-          Next: Other database tools... 
+          Next: Other database tools...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
@@ -627,18 +627,18 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/09-create.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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@@ -663,7 +663,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-sql/instructor/09-create.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2024-03-26",
-  "datePublished": "2024-07-02"
+  "datePublished": "2024-07-09"
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diff --git a/instructor/10-other-tools.html b/instructor/10-other-tools.html
index 1c83a0f0..fe2993f0 100644
--- a/instructor/10-other-tools.html
+++ b/instructor/10-other-tools.html
@@ -46,7 +46,7 @@
             </li>
           </ul></li>
       </div>
-      
+
       <div class="dropdown" id="instructor-dropdown">
         <button class="btn btn-secondary dropdown-toggle bordered-button" type="button" id="dropdownMenu1" data-bs-toggle="dropdown" aria-expanded="false">
           <i aria-hidden="true" class="icon" data-feather="eye"></i> Instructor View <i data-feather="chevron-down"></i>
@@ -170,7 +170,7 @@ <h2 class="accordion-header" id="flush-headingNine">
                 </div><!--/div.accordion-flush-->
               </div><!--div.sidenav-view-selector -->
             </div><!--/div.col -->
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             <hr></div><!--/div.mobile-row -->
 
           <div class="accordion accordion-flush" id="accordionFlush11">
@@ -189,7 +189,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Schedule</a>
     </div><!--/div.accordion-header-->
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   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -198,7 +198,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading2">
         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -207,7 +207,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading3">
         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -216,7 +216,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading4">
         <a href="03-filtering.html">3. Filtering</a>
     </div><!--/div.accordion-header-->
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   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -225,7 +225,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading5">
         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -234,7 +234,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading6">
         <a href="05-aggregating-calculating.html">5. Aggregating and calculating values</a>
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@@ -243,7 +243,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="06-joins-aliases.html">6. Joins and aliases</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -252,7 +252,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading8">
         <a href="07-saving-queries.html">7. Saving queries</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -261,7 +261,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading9">
         <a href="08-database-design.html">8. Database design</a>
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@@ -270,7 +270,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="09-create.html">9. Creating tables and modifying data</a>
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@@ -284,13 +284,13 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         </span>
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     <div id="flush-collapsecurrent" class="accordion-collapse collapse show" aria-labelledby="flush-headingcurrent" data-bs-parent="#accordionFlushcurrent">
       <div class="accordion-body">
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         </ul></div><!--/div.accordion-body-->
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@@ -299,7 +299,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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@@ -308,7 +308,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="Bonus_GoodStyle.html">12. Good Style</a>
     </div><!--/div.accordion-header-->
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@@ -340,10 +340,10 @@ <h2 class="accordion-header" id="flush-headingTwelve">
               </div>
             </div>
             <hr class="half-width resources"><a href="../instructor/aio.html">See all in one page</a>
-            
+
 
             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
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             </div>
           </div><!-- /div.accordion -->
         </div><!-- /div.sidebar-inner -->
@@ -364,20 +364,20 @@ <h2 class="accordion-header" id="flush-headingTwelve">
           Previous: Creating tables and
         </a>
         <a class="chapter-link float-end" href="../instructor/11-extra-challenges.html" rel="next">
-          Next: Extra challenges... 
+          Next: Extra challenges...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Other database tools</h1>
         <p>Last updated on 2023-05-02 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/10-other-tools.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
-        
-        
-        
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+
+
         <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 5 minutes</p>
-        
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         <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
         </div>
@@ -406,8 +406,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="other-database-tools"><h2 class="section-heading">Other database tools<a class="anchor" aria-label="anchor" href="#other-database-tools"></a>
-</h2>
+<section><h2 class="section-heading" id="other-database-tools">Other database tools<a class="anchor" aria-label="anchor" href="#other-database-tools"></a>
+<a class="anchor" aria-label="anchor" href="#other-database-tools"></a></h2>
 <hr class="half-width"><p>For this lesson, <a href="https://sqlitebrowser.org" class="external-link">DB Browser</a>,
 a free open source database tool was used, but there are other tools
 available, both proprietary and open. A helpful <a href="https://en.wikipedia.org/wiki/Comparison_of_database_tools" class="external-link">comparison
@@ -448,7 +448,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
           Previous: Creating tables and
         </a>
         <a class="chapter-link float-end" href="../instructor/11-extra-challenges.html" rel="next">
-          Next: Extra challenges... 
+          Next: Extra challenges...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
@@ -459,18 +459,18 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/10-other-tools.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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@@ -495,7 +495,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "identifier": "https://librarycarpentry.github.io/lc-sql/instructor/10-other-tools.html",
   "dateCreated": "2018-04-12",
   "dateModified": "2023-05-02",
-  "datePublished": "2024-07-02"
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
diff --git a/instructor/11-extra-challenges.html b/instructor/11-extra-challenges.html
index 73ed7192..211f7ec7 100644
--- a/instructor/11-extra-challenges.html
+++ b/instructor/11-extra-challenges.html
@@ -46,7 +46,7 @@
             </li>
           </ul></li>
       </div>
-      
+
       <div class="dropdown" id="instructor-dropdown">
         <button class="btn btn-secondary dropdown-toggle bordered-button" type="button" id="dropdownMenu1" data-bs-toggle="dropdown" aria-expanded="false">
           <i aria-hidden="true" class="icon" data-feather="eye"></i> Instructor View <i data-feather="chevron-down"></i>
@@ -170,7 +170,7 @@ <h2 class="accordion-header" id="flush-headingNine">
                 </div><!--/div.accordion-flush-->
               </div><!--div.sidenav-view-selector -->
             </div><!--/div.col -->
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             <hr></div><!--/div.mobile-row -->
 
           <div class="accordion accordion-flush" id="accordionFlush11">
@@ -189,7 +189,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Schedule</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -198,7 +198,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading2">
         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div><!--/div.accordion-header-->
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@@ -207,7 +207,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading3">
         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
     </div><!--/div.accordion-header-->
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@@ -216,7 +216,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading4">
         <a href="03-filtering.html">3. Filtering</a>
     </div><!--/div.accordion-header-->
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   </div><!--/div.accordion-item-->
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@@ -225,7 +225,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading5">
         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
     </div><!--/div.accordion-header-->
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+
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 </div><!--/div.accordion-flush-->
 
@@ -234,7 +234,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading6">
         <a href="05-aggregating-calculating.html">5. Aggregating and calculating values</a>
     </div><!--/div.accordion-header-->
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@@ -243,7 +243,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading7">
         <a href="06-joins-aliases.html">6. Joins and aliases</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -252,7 +252,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading8">
         <a href="07-saving-queries.html">7. Saving queries</a>
     </div><!--/div.accordion-header-->
-        
+
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 </div><!--/div.accordion-flush-->
 
@@ -261,7 +261,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading9">
         <a href="08-database-design.html">8. Database design</a>
     </div><!--/div.accordion-header-->
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@@ -270,7 +270,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading10">
         <a href="09-create.html">9. Creating tables and modifying data</a>
     </div><!--/div.accordion-header-->
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@@ -279,7 +279,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading11">
         <a href="10-other-tools.html">10. Other database tools</a>
     </div><!--/div.accordion-header-->
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@@ -293,13 +293,13 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         </span>
       </button>
     </div><!--/div.accordion-header-->
-        
+
     <div id="flush-collapsecurrent" class="accordion-collapse collapse show" aria-labelledby="flush-headingcurrent" data-bs-parent="#accordionFlushcurrent">
       <div class="accordion-body">
         <ul><li><a href="#extra-challenges-optional">Extra challenges (optional)</a></li>
         </ul></div><!--/div.accordion-body-->
     </div><!--/div.accordion-collapse-->
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   </div><!--/div.accordion-item-->
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@@ -308,7 +308,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading13">
         <a href="Bonus_GoodStyle.html">12. Good Style</a>
     </div><!--/div.accordion-header-->
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+
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 </div><!--/div.accordion-flush-->
 
@@ -340,10 +340,10 @@ <h2 class="accordion-header" id="flush-headingTwelve">
               </div>
             </div>
             <hr class="half-width resources"><a href="../instructor/aio.html">See all in one page</a>
-            
+
 
             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
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             </div>
           </div><!-- /div.accordion -->
         </div><!-- /div.sidebar-inner -->
@@ -364,20 +364,20 @@ <h2 class="accordion-header" id="flush-headingTwelve">
           Previous: Other database tools
         </a>
         <a class="chapter-link float-end" href="../instructor/Bonus_GoodStyle.html" rel="next">
-          Next: Good Style... 
+          Next: Good Style...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Extra challenges (optional)</h1>
         <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/11-extra-challenges.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
-        
-        
-        
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+
+
         <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 35 minutes</p>
-        
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           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
         </div>
@@ -406,8 +406,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="extra-challenges-optional"><h2 class="section-heading">Extra challenges (optional)<a class="anchor" aria-label="anchor" href="#extra-challenges-optional"></a>
-</h2>
+<section><h2 class="section-heading" id="extra-challenges-optional">Extra challenges (optional)<a class="anchor" aria-label="anchor" href="#extra-challenges-optional"></a>
+<a class="anchor" aria-label="anchor" href="#extra-challenges-optional"></a></h2>
 <hr class="half-width"><p>SQL queries help us <em>ask</em> specific <em>questions</em> which we
 want to answer about our data. The real skill with SQL is to know how to
 translate our questions into a sensible SQL queries (and subsequently
@@ -439,7 +439,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution 1
   </h4>
 </button>
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 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb1">
 <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
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-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
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@@ -622,7 +622,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
           Previous: Other database tools
         </a>
         <a class="chapter-link float-end" href="../instructor/Bonus_GoodStyle.html" rel="next">
-          Next: Good Style... 
+          Next: Good Style...
           <i aria-hidden="true" class="small-arrow" data-feather="arrow-right"></i>
         </a>
       </div>
@@ -633,18 +633,18 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/11-extra-challenges.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
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   "dateCreated": "2018-04-12",
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+  "datePublished": "2024-07-09"
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diff --git a/instructor/404.html b/instructor/404.html
index 2eb24617..abdf7de2 100644
--- a/instructor/404.html
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@@ -46,7 +46,7 @@
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+
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 <!--/div.accordion-header-->
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+
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 <!--/div.accordion-header-->
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@@ -224,7 +224,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="https://librarycarpentry.github.io/lc-sql/03-filtering.html" class="external-link">3. Filtering</a>
     </div>
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@@ -235,7 +235,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="https://librarycarpentry.github.io/lc-sql/11-extra-challenges.html" class="external-link">11. Extra challenges (optional)</a>
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     </div>
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@@ -357,10 +357,10 @@ <h2 class="accordion-header" id="flush-headingTwelve">
               </div>
             </div>
             <hr class="half-width resources"><a href="https://librarycarpentry.github.io/lc-sql/instructor/aio.html" class="external-link">See all in one page</a>
-            
+
 
             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
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             </div>
           </div><!-- /div.accordion -->
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@@ -373,8 +373,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
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         <h1>Page not found</h1>
         
-<section id="our-apologies"><h2 class="section-heading">Our apologies!<a class="anchor" aria-label="anchor" href="#our-apologies"></a>
-</h2>
+<section><h2 class="section-heading" id="our-apologies">Our apologies!<a class="anchor" aria-label="anchor" href="#our-apologies"></a>
+<a class="anchor" aria-label="anchor" href="#our-apologies"></a></h2>
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@@ -396,18 +396,18 @@ <h1>Page not found</h1>
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/README.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
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@@ -431,8 +431,8 @@ <h1>Page not found</h1>
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-  "dateModified": "2024-07-02",
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diff --git a/instructor/Bonus_GoodStyle.html b/instructor/Bonus_GoodStyle.html
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+++ b/instructor/Bonus_GoodStyle.html
@@ -46,7 +46,7 @@
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+
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@@ -189,7 +189,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Schedule</a>
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@@ -198,7 +198,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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@@ -216,7 +216,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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@@ -225,7 +225,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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@@ -234,7 +234,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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@@ -243,7 +243,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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@@ -252,7 +252,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="07-saving-queries.html">7. Saving queries</a>
     </div><!--/div.accordion-header-->
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         <a href="08-database-design.html">8. Database design</a>
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@@ -279,7 +279,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading11">
         <a href="10-other-tools.html">10. Other database tools</a>
     </div><!--/div.accordion-header-->
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@@ -288,7 +288,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading12">
         <a href="11-extra-challenges.html">11. Extra challenges (optional)</a>
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@@ -302,7 +302,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         </span>
       </button>
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     <div id="flush-collapsecurrent" class="accordion-collapse collapse show" aria-labelledby="flush-headingcurrent" data-bs-parent="#accordionFlushcurrent">
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@@ -311,7 +311,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
 <li><a href="#readability">Readability</a></li>
         </ul></div><!--/div.accordion-body-->
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@@ -343,10 +343,10 @@ <h2 class="accordion-header" id="flush-headingTwelve">
               </div>
             </div>
             <hr class="half-width resources"><a href="../instructor/aio.html">See all in one page</a>
-            
+
 
             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
-            
+
             </div>
           </div><!-- /div.accordion -->
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@@ -374,13 +374,13 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Good Style</h1>
         <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/Bonus_GoodStyle.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
-        
-        
-        
+
+
+
         <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 10 minutes</p>
-        
+
         <div class="text-end">
           <button role="button" aria-pressed="false" tabindex="0" id="expand-code" class="pull-right" data-expand="Expand All Solutions " data-collapse="Collapse All Solutions "> Expand All Solutions <i aria-hidden="true" data-feather="plus"></i></button>
         </div>
@@ -409,14 +409,14 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="an-introduction-to-good-style"><h2 class="section-heading">An Introduction to good style<a class="anchor" aria-label="anchor" href="#an-introduction-to-good-style"></a>
-</h2>
+<section><h2 class="section-heading" id="an-introduction-to-good-style">An Introduction to good style<a class="anchor" aria-label="anchor" href="#an-introduction-to-good-style"></a>
+<a class="anchor" aria-label="anchor" href="#an-introduction-to-good-style"></a></h2>
 <hr class="half-width"><p>There are many ways to write an SQL queries, but some look better
 than others. Abiding by good style guidelines will make your SQL queries
 easier to read, especially if you are sharing them with others. These
 are some quick tips for making your SQL look clean.</p>
-</section><section id="pick-column-names-that-are-precise-and-short"><h2 class="section-heading">Pick column names that are precise and short<a class="anchor" aria-label="anchor" href="#pick-column-names-that-are-precise-and-short"></a>
-</h2>
+</section><section><h2 class="section-heading" id="pick-column-names-that-are-precise-and-short">Pick column names that are precise and short<a class="anchor" aria-label="anchor" href="#pick-column-names-that-are-precise-and-short"></a>
+<a class="anchor" aria-label="anchor" href="#pick-column-names-that-are-precise-and-short"></a></h2>
 <hr class="half-width"><p>When choosing column names, it’s important to remember that a large
 part of what you type in your query will be composed of your column
 names. Choosing a column name that is one or two words (without any
@@ -424,8 +424,8 @@ <h3 class="card-title">Objectives</h3>
 you include spaces in your column names, you will get an error message
 when you try to run your queries, so we would recommend using CamelCase,
 or An_Underscore.</p>
-</section><section id="capitalization-sometimes-matters"><h2 class="section-heading">Capitalization (sometimes) matters<a class="anchor" aria-label="anchor" href="#capitalization-sometimes-matters"></a>
-</h2>
+</section><section><h2 class="section-heading" id="capitalization-sometimes-matters">Capitalization (sometimes) matters<a class="anchor" aria-label="anchor" href="#capitalization-sometimes-matters"></a>
+<a class="anchor" aria-label="anchor" href="#capitalization-sometimes-matters"></a></h2>
 <hr class="half-width"><p>In section two, we talked about SQL keywords/commands being
 case-insensitive (“We have capitalised the words SELECT and FROM because
 they are SQL keywords. This makes no difference to the SQL interpreter
@@ -433,8 +433,8 @@ <h3 class="card-title">Objectives</h3>
 considered good style.”). But did you know that in some SQL programs,
 depending on the settings, table and column names are case sensitive? If
 your query isn’t working, check the capitalization.</p>
-</section><section id="readability"><h2 class="section-heading">Readability<a class="anchor" aria-label="anchor" href="#readability"></a>
-</h2>
+</section><section><h2 class="section-heading" id="readability">Readability<a class="anchor" aria-label="anchor" href="#readability"></a>
+<a class="anchor" aria-label="anchor" href="#readability"></a></h2>
 <hr class="half-width"><p>As you may have noticed, we are able to write our query on one line,
 or on many. The general consensus with SQL is that if you can break it
 into components on multiple lines, it becomes easier to read. Using
@@ -495,18 +495,18 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
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-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
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 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
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@@ -46,7 +46,7 @@
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           <div class="accordion accordion-flush" id="accordionFlush11">
@@ -189,7 +189,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Schedule</a>
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@@ -198,7 +198,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="01-introduction.html">1. Introduction to SQL</a>
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     <div class="accordion-header" id="flush-heading4">
         <a href="03-filtering.html">3. Filtering</a>
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         <a href="09-create.html">9. Creating tables and modifying data</a>
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         <a href="11-extra-challenges.html">11. Extra challenges (optional)</a>
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@@ -297,7 +297,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading13">
         <a href="Bonus_GoodStyle.html">12. Good Style</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -329,10 +329,10 @@ <h2 class="accordion-header" id="flush-headingTwelve">
               </div>
             </div>
             <hr class="half-width resources"><a href="../instructor/aio.html">See all in one page</a>
-            
+
 
             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
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@@ -360,13 +360,13 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Contributor Code of Conduct</h1>
         <p>Last updated on 2023-05-02 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/CODE_OF_CONDUCT.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
-        
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@@ -405,18 +405,18 @@ <h1>Contributor Code of Conduct</h1>
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/CODE_OF_CONDUCT.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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@@ -441,7 +441,7 @@ <h1>Contributor Code of Conduct</h1>
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   "dateCreated": "2018-04-12",
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+  "datePublished": "2024-07-09"
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diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index 84e63be4..fa8c4536 100644
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@@ -46,7 +46,7 @@
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+
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@@ -170,7 +170,7 @@ <h2 class="accordion-header" id="flush-headingNine">
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               </div><!--div.sidenav-view-selector -->
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           <div class="accordion accordion-flush" id="accordionFlush11">
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     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Schedule</a>
     </div><!--/div.accordion-header-->
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@@ -198,7 +198,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading2">
         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div><!--/div.accordion-header-->
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@@ -207,7 +207,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
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@@ -216,7 +216,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="03-filtering.html">3. Filtering</a>
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@@ -225,7 +225,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
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@@ -234,7 +234,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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@@ -243,7 +243,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="06-joins-aliases.html">6. Joins and aliases</a>
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@@ -252,7 +252,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading8">
         <a href="07-saving-queries.html">7. Saving queries</a>
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         <a href="08-database-design.html">8. Database design</a>
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@@ -270,7 +270,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
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         <a href="09-create.html">9. Creating tables and modifying data</a>
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               </div>
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             <hr class="half-width resources"><a href="../instructor/aio.html">See all in one page</a>
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             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
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@@ -360,21 +360,21 @@ <h2 class="accordion-header" id="flush-headingTwelve">
       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Licenses</h1>
         <p>Last updated on 2023-05-02 |
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-        
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         </div>
 
         
 
-<section id="instructional-material"><h2 class="section-heading">Instructional Material<a class="anchor" aria-label="anchor" href="#instructional-material"></a>
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+<section><h2 class="section-heading" id="instructional-material">Instructional Material<a class="anchor" aria-label="anchor" href="#instructional-material"></a>
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 <hr class="half-width"><p>All Carpentries (Software Carpentry, Data Carpentry, and Library
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 permissions necessary for your intended use. For example, other rights
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 material.</li>
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 <hr class="half-width"><p>Except where otherwise noted, the example programs and other software
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@@ -456,18 +456,18 @@ <h1>Licenses</h1>
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         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
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   "dateCreated": "2018-04-12",
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 }
 
   </script><script>
diff --git a/instructor/aio.html b/instructor/aio.html
index 749d433c..aa3c379a 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -65,7 +65,7 @@
           </ul>
 </li>
       </div>
-      
+
       <div class="dropdown" id="instructor-dropdown">
         <button class="btn btn-secondary dropdown-toggle bordered-button" type="button" id="dropdownMenu1" data-bs-toggle="dropdown" aria-expanded="false">
           <i aria-hidden="true" class="icon" data-feather="eye"></i> Instructor View <i data-feather="chevron-down"></i>
@@ -205,7 +205,7 @@ <h2 class="accordion-header" id="flush-headingNine">
 <!--div.sidenav-view-selector -->
             </div>
 <!--/div.col -->
-      
+
             <hr>
 </div>
 <!--/div.mobile-row -->
@@ -227,7 +227,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="index.html">Summary and Schedule</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -239,7 +239,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -251,7 +251,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -263,7 +263,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="03-filtering.html">3. Filtering</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -275,7 +275,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -287,7 +287,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="05-aggregating-calculating.html">5. Aggregating and calculating values</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -299,7 +299,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="06-joins-aliases.html">6. Joins and aliases</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -311,7 +311,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="07-saving-queries.html">7. Saving queries</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -323,7 +323,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="08-database-design.html">8. Database design</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -335,7 +335,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="09-create.html">9. Creating tables and modifying data</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -347,7 +347,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="10-other-tools.html">10. Other database tools</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -359,7 +359,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="11-extra-challenges.html">11. Extra challenges (optional)</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -371,7 +371,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="Bonus_GoodStyle.html">12. Good Style</a>
     </div>
 <!--/div.accordion-header-->
-        
+
   </div>
 <!--/div.accordion-item-->
 </div>
@@ -411,11 +411,11 @@ <h2 class="accordion-header" id="flush-headingTwelve">
             </div>
             <hr class="half-width resources">
 <a href="../instructor/aio.html">See all in one page</a>
-            
+
 
             <hr class="d-none d-sm-block d-md-none">
 <div class="d-grid gap-1">
-            
+
             </div>
           </div>
 <!-- /div.accordion -->
@@ -436,7 +436,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
 <section id="aio-01-introduction"><p>Content from <a href="01-introduction.html">Introduction to SQL</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/01-introduction.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 15 minutes</p>
 <div class="text-end">
@@ -472,7 +472,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="what-is-sql"><h2 class="section-heading">What is SQL?<a class="anchor" aria-label="anchor" href="#what-is-sql"></a>
+<section><h2 class="section-heading" id="what-is-sql">What is SQL?<a class="anchor" aria-label="anchor" href="#what-is-sql"></a>
+<a class="anchor" aria-label="anchor" href="#what-is-sql"></a>
 </h2>
 <hr class="half-width">
 <p><strong>S</strong>tructured <strong>Q</strong>uery
@@ -483,7 +484,8 @@ <h3 class="card-title">Objectives</h3>
 programming languages to let any program interact with databases. There
 are several variants of SQL, but all support the same basic statements
 that we will be covering today.</p>
-</section><section id="relational-databases"><h2 class="section-heading">Relational databases<a class="anchor" aria-label="anchor" href="#relational-databases"></a>
+</section><section><h2 class="section-heading" id="relational-databases">Relational databases<a class="anchor" aria-label="anchor" href="#relational-databases"></a>
+<a class="anchor" aria-label="anchor" href="#relational-databases"></a>
 </h2>
 <hr class="half-width">
 <p>Relational databases consist of one or more tables of data. These
@@ -493,7 +495,8 @@ <h3 class="card-title">Objectives</h3>
 other when a field in one table can be matched to a field in another
 table. SQL <em>queries</em> are the commands that let you look up data
 in a database or make calculations based on columns.</p>
-</section><section id="why-use-sql"><h2 class="section-heading">Why use SQL?<a class="anchor" aria-label="anchor" href="#why-use-sql"></a>
+</section><section><h2 class="section-heading" id="why-use-sql">Why use SQL?<a class="anchor" aria-label="anchor" href="#why-use-sql"></a>
+<a class="anchor" aria-label="anchor" href="#why-use-sql"></a>
 </h2>
 <hr class="half-width">
 <p>SQL is well established and has been around since the 1970s. It is
@@ -511,8 +514,9 @@ <h3 class="card-title">Objectives</h3>
 Amazon) run on a SQL (relational) database. Understanding SQL is the
 first step in eventually building custom web applications that can serve
 data to users.</p>
-</section><section id="why-are-people-working-in-library--and-information-related-roles-well-suited-to-sql"><h2 class="section-heading">Why are people working in library- and information-related roles
+</section><section><h2 class="section-heading" id="why-are-people-working-in-library--and-information-related-roles-well-suited-to-sql">Why are people working in library- and information-related roles
 well suited to SQL?<a class="anchor" aria-label="anchor" href="#why-are-people-working-in-library--and-information-related-roles-well-suited-to-sql"></a>
+<a class="anchor" aria-label="anchor" href="#why-are-people-working-in-library--and-information-related-roles-well-suited-to-sql"></a>
 </h2>
 <hr class="half-width">
 <p>Library work is about information management. As library workers, we
@@ -569,7 +573,8 @@ <h3 class="callout-title">What are some of the uses for SQL in libraries?<a clas
 </div>
 </div>
 </div>
-</section><section id="database-management-systems"><h2 class="section-heading">Database Management Systems<a class="anchor" aria-label="anchor" href="#database-management-systems"></a>
+</section><section><h2 class="section-heading" id="database-management-systems">Database Management Systems<a class="anchor" aria-label="anchor" href="#database-management-systems"></a>
+<a class="anchor" aria-label="anchor" href="#database-management-systems"></a>
 </h2>
 <hr class="half-width">
 <p>There are a number of different database management systems for
@@ -578,7 +583,8 @@ <h3 class="callout-title">What are some of the uses for SQL in libraries?<a clas
 systems as well (e.g., MySQL, PostgreSQL, MS Access, Filemaker Pro). The
 only things that will differ are the details of exactly how to import
 and export data and possibly some differences in datatype.</p>
-</section><section id="introduction-to-db-browser-for-sqlite"><h2 class="section-heading">Introduction to DB Browser for SQLite<a class="anchor" aria-label="anchor" href="#introduction-to-db-browser-for-sqlite"></a>
+</section><section><h2 class="section-heading" id="introduction-to-db-browser-for-sqlite">Introduction to DB Browser for SQLite<a class="anchor" aria-label="anchor" href="#introduction-to-db-browser-for-sqlite"></a>
+<a class="anchor" aria-label="anchor" href="#introduction-to-db-browser-for-sqlite"></a>
 </h2>
 <hr class="half-width">
 <p>Let’s all open the database we downloaded via the setup in DB Browser
@@ -604,7 +610,8 @@ <h3 class="callout-title">What are some of the uses for SQL in libraries?<a clas
 <li>Click “OK” to import the data. If the table name matches an existing
 table and the number of columns match, DB Browser will ask if you want
 to add the data to the existing table.</li>
-</ol></section><section id="dataset-description"><h2 class="section-heading">Dataset Description<a class="anchor" aria-label="anchor" href="#dataset-description"></a>
+</ol></section><section><h2 class="section-heading" id="dataset-description">Dataset Description<a class="anchor" aria-label="anchor" href="#dataset-description"></a>
+<a class="anchor" aria-label="anchor" href="#dataset-description"></a>
 </h2>
 <hr class="half-width">
 <p>The data we will use was created from 5 csv files that contain tables
@@ -662,13 +669,15 @@ <h3 class="callout-title">What are some of the uses for SQL in libraries?<a clas
 <li>(2 fields, 6 records)</li>
 <li>Field names: <code>id</code>, <code>Publisher</code>
 </li>
-</ul></section><section id="a-note-about-data-types"><h2 class="section-heading">A Note About Data Types<a class="anchor" aria-label="anchor" href="#a-note-about-data-types"></a>
+</ul></section><section><h2 class="section-heading" id="a-note-about-data-types">A Note About Data Types<a class="anchor" aria-label="anchor" href="#a-note-about-data-types"></a>
+<a class="anchor" aria-label="anchor" href="#a-note-about-data-types"></a>
 </h2>
 <hr class="half-width">
 <p>The main data types that are used in doaj-article-sample database are
 <code>INTEGER</code> and <code>TEXT</code> which define what value the
 table column can hold.</p>
-</section><section id="sql-data-type-quick-reference"><h2 class="section-heading">SQL Data Type Quick Reference<a class="anchor" aria-label="anchor" href="#sql-data-type-quick-reference"></a>
+</section><section><h2 class="section-heading" id="sql-data-type-quick-reference">SQL Data Type Quick Reference<a class="anchor" aria-label="anchor" href="#sql-data-type-quick-reference"></a>
+<a class="anchor" aria-label="anchor" href="#sql-data-type-quick-reference"></a>
 </h2>
 <hr class="half-width">
 <p>Different database software/platforms have different names and
@@ -755,7 +764,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-02-selecting-sorting-data"><p>Content from <a href="02-selecting-sorting-data.html">Selecting and sorting data</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/02-selecting-sorting-data.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 20 minutes</p>
 <div class="text-end">
@@ -792,7 +801,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="what-is-a-query"><h2 class="section-heading">What is a query?<a class="anchor" aria-label="anchor" href="#what-is-a-query"></a>
+<section><h2 class="section-heading" id="what-is-a-query">What is a query?<a class="anchor" aria-label="anchor" href="#what-is-a-query"></a>
+<a class="anchor" aria-label="anchor" href="#what-is-a-query"></a>
 </h2>
 <hr class="half-width">
 <p>A query is a question or request for data. For example, “How many
@@ -801,7 +811,8 @@ <h3 class="card-title">Objectives</h3>
 is called a statement. Some of the most useful queries - the ones we are
 introducing in this first section - are used to return results from a
 table that match specific criteria.</p>
-</section><section id="writing-my-first-query"><h2 class="section-heading">Writing my first query<a class="anchor" aria-label="anchor" href="#writing-my-first-query"></a>
+</section><section><h2 class="section-heading" id="writing-my-first-query">Writing my first query<a class="anchor" aria-label="anchor" href="#writing-my-first-query"></a>
+<a class="anchor" aria-label="anchor" href="#writing-my-first-query"></a>
 </h2>
 <hr class="half-width">
 <p>Let’s start by opening DB Browser for SQLite and the
@@ -818,7 +829,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 <pre class="sourceCode sql" tabindex="0"><code class="sourceCode sql"><span id="cb1-1"><a href="#cb1-1" tabindex="-1"></a><span class="kw">SELECT</span> title</span>
 <span id="cb1-2"><a href="#cb1-2" tabindex="-1"></a><span class="kw">FROM</span> articles;</span></code></pre>
 </div>
-</section><section id="capitalization-and-good-style"><h2 class="section-heading">Capitalization and good style<a class="anchor" aria-label="anchor" href="#capitalization-and-good-style"></a>
+</section><section><h2 class="section-heading" id="capitalization-and-good-style">Capitalization and good style<a class="anchor" aria-label="anchor" href="#capitalization-and-good-style"></a>
+<a class="anchor" aria-label="anchor" href="#capitalization-and-good-style"></a>
 </h2>
 <hr class="half-width">
 <p>In the first query above, we have capitalized the words
@@ -860,7 +872,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 <pre class="sourceCode sql" tabindex="0"><code class="sourceCode sql"><span id="cb5-1"><a href="#cb5-1" tabindex="-1"></a><span class="kw">SELECT</span> <span class="op">*</span></span>
 <span id="cb5-2"><a href="#cb5-2" tabindex="-1"></a><span class="kw">FROM</span> articles;</span></code></pre>
 </div>
-</section><section id="unique-values"><h2 class="section-heading">Unique values<a class="anchor" aria-label="anchor" href="#unique-values"></a>
+</section><section><h2 class="section-heading" id="unique-values">Unique values<a class="anchor" aria-label="anchor" href="#unique-values"></a>
+<a class="anchor" aria-label="anchor" href="#unique-values"></a>
 </h2>
 <hr class="half-width">
 <p>There may be a situation when you need to retrieve unique records and
@@ -883,7 +896,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 <pre class="sourceCode sql" tabindex="0"><code class="sourceCode sql"><span id="cb7-1"><a href="#cb7-1" tabindex="-1"></a><span class="kw">SELECT</span> <span class="kw">DISTINCT</span> ISSNs, <span class="dt">Day</span>, <span class="dt">Month</span>, <span class="dt">Year</span></span>
 <span id="cb7-2"><a href="#cb7-2" tabindex="-1"></a><span class="kw">FROM</span> articles;</span></code></pre>
 </div>
-</section><section id="sorting"><h2 class="section-heading">Sorting<a class="anchor" aria-label="anchor" href="#sorting"></a>
+</section><section><h2 class="section-heading" id="sorting">Sorting<a class="anchor" aria-label="anchor" href="#sorting"></a>
+<a class="anchor" aria-label="anchor" href="#sorting"></a>
 </h2>
 <hr class="half-width">
 <p>We can also sort the results of our queries by using the keyword
@@ -972,7 +986,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-03-filtering"><p>Content from <a href="03-filtering.html">Filtering</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/03-filtering.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 30 minutes</p>
 <div class="text-end">
@@ -1008,7 +1022,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="filtering"><h2 class="section-heading">Filtering<a class="anchor" aria-label="anchor" href="#filtering"></a>
+<section><h2 class="section-heading" id="filtering">Filtering<a class="anchor" aria-label="anchor" href="#filtering"></a>
+<a class="anchor" aria-label="anchor" href="#filtering"></a>
 </h2>
 <hr class="half-width">
 <p>SQL is a powerful tool for filtering data in databases based on a set
@@ -1127,7 +1142,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-04-ordering-commenting"><p>Content from <a href="04-ordering-commenting.html">Ordering and commenting</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/04-ordering-commenting.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 15 minutes</p>
 <div class="text-end">
@@ -1160,7 +1175,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="order-of-execution"><h2 class="section-heading">Order of execution<a class="anchor" aria-label="anchor" href="#order-of-execution"></a>
+<section><h2 class="section-heading" id="order-of-execution">Order of execution<a class="anchor" aria-label="anchor" href="#order-of-execution"></a>
+<a class="anchor" aria-label="anchor" href="#order-of-execution"></a>
 </h2>
 <hr class="half-width">
 <p>Let’s say we had the following query:</p>
@@ -1197,7 +1213,8 @@ <h3 class="callout-title">The computer is basically doing this:<a class="anchor"
 <code>FROM</code>, <code>WHERE</code>, then <code>ORDER BY</code>. It is
 possible to write a query as a single line, but for readability, we
 recommend to put each clause on its own line.</p>
-</section><section id="complex-queries-commenting"><h2 class="section-heading">Complex queries &amp; commenting<a class="anchor" aria-label="anchor" href="#complex-queries-commenting"></a>
+</section><section><h2 class="section-heading" id="complex-queries-commenting">Complex queries &amp; commenting<a class="anchor" aria-label="anchor" href="#complex-queries-commenting"></a>
+<a class="anchor" aria-label="anchor" href="#complex-queries-commenting"></a>
 </h2>
 <hr class="half-width">
 <p>The goal is to make a query easy to read and understand, even when
@@ -1283,7 +1300,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-05-aggregating-calculating"><p>Content from <a href="05-aggregating-calculating.html">Aggregating and calculating values</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/05-aggregating-calculating.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 20 minutes</p>
 <div class="text-end">
@@ -1318,7 +1335,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="aggregation"><h2 class="section-heading">Aggregation<a class="anchor" aria-label="anchor" href="#aggregation"></a>
+<section><h2 class="section-heading" id="aggregation">Aggregation<a class="anchor" aria-label="anchor" href="#aggregation"></a>
+<a class="anchor" aria-label="anchor" href="#aggregation"></a>
 </h2>
 <hr class="half-width">
 <p>SQL contains functions which allow you to make calculations on data
@@ -1377,7 +1395,7 @@ <h3 class="callout-title">Challenge<a class="anchor" aria-label="anchor" href="#
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1"> Show me the solution </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb3">
 <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1391,7 +1409,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 </div>
 </div>
 </div>
-</section><section id="the-having-keyword"><h2 class="section-heading">The <code>HAVING</code> keyword<a class="anchor" aria-label="anchor" href="#the-having-keyword"></a>
+</section><section><h2 class="section-heading" id="the-having-keyword">The <code>HAVING</code> keyword<a class="anchor" aria-label="anchor" href="#the-having-keyword"></a>
+<a class="anchor" aria-label="anchor" href="#the-having-keyword"></a>
 </h2>
 <hr class="half-width">
 <p>SQL offers a mechanism to filter the results based on aggregate
@@ -1437,7 +1456,7 @@ <h3 class="callout-title">Challenge<a class="anchor" aria-label="anchor" href="#
 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution2" aria-expanded="false" aria-controls="collapseSolution2">
   <h4 class="accordion-header" id="headingSolution2"> Show me the solution </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb5">
 <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1451,7 +1470,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 </div>
 </div>
 </div>
-</section><section id="calculations"><h2 class="section-heading">Calculations<a class="anchor" aria-label="anchor" href="#calculations"></a>
+</section><section><h2 class="section-heading" id="calculations">Calculations<a class="anchor" aria-label="anchor" href="#calculations"></a>
+<a class="anchor" aria-label="anchor" href="#calculations"></a>
 </h2>
 <hr class="half-width">
 <p>In SQL, we can also perform calculations as we query the database.
@@ -1496,7 +1516,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-06-joins-aliases"><p>Content from <a href="06-joins-aliases.html">Joins and aliases</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/06-joins-aliases.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 45 minutes</p>
 <div class="text-end">
@@ -1530,7 +1550,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="joins"><h2 class="section-heading">Joins<a class="anchor" aria-label="anchor" href="#joins"></a>
+<section><h2 class="section-heading" id="joins">Joins<a class="anchor" aria-label="anchor" href="#joins"></a>
+<a class="anchor" aria-label="anchor" href="#joins"></a>
 </h2>
 <hr class="half-width">
 <p>The SQL <code>JOIN</code> clause allows us to combine columns from
@@ -1688,7 +1709,8 @@ <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i>
 <p>There are different types of joins which you can learn more about at
 <a href="https://www.geeksforgeeks.org/sql-join-set-1-inner-left-right-and-full-joins/" class="external-link">SQL
 Joins Explained</a>.</p>
-</section><section id="aliases"><h2 class="section-heading">Aliases<a class="anchor" aria-label="anchor" href="#aliases"></a>
+</section><section><h2 class="section-heading" id="aliases">Aliases<a class="anchor" aria-label="anchor" href="#aliases"></a>
+<a class="anchor" aria-label="anchor" href="#aliases"></a>
 </h2>
 <hr class="half-width">
 <p>As queries get more complex, names can get long and unwieldy. To help
@@ -1744,7 +1766,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-07-saving-queries"><p>Content from <a href="07-saving-queries.html">Saving queries</a></p>
 <hr>
 <p>Last updated on 2023-05-02 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/07-saving-queries.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 30 minutes</p>
 <div class="text-end">
@@ -1777,7 +1799,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="saving-queries-for-future-use"><h2 class="section-heading">Saving queries for future use<a class="anchor" aria-label="anchor" href="#saving-queries-for-future-use"></a>
+<section><h2 class="section-heading" id="saving-queries-for-future-use">Saving queries for future use<a class="anchor" aria-label="anchor" href="#saving-queries-for-future-use"></a>
+<a class="anchor" aria-label="anchor" href="#saving-queries-for-future-use"></a>
 </h2>
 <hr class="half-width">
 <p>It is not uncommon to repeat the same operation more than once, for
@@ -1874,7 +1897,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-08-database-design"><p>Content from <a href="08-database-design.html">Database design</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/08-database-design.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 45 minutes</p>
 <div class="text-end">
@@ -1906,7 +1929,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="spreadsheets"><h2 class="section-heading">Spreadsheets<a class="anchor" aria-label="anchor" href="#spreadsheets"></a>
+<section><h2 class="section-heading" id="spreadsheets">Spreadsheets<a class="anchor" aria-label="anchor" href="#spreadsheets"></a>
+<a class="anchor" aria-label="anchor" href="#spreadsheets"></a>
 </h2>
 <hr class="half-width">
 <p>In libraries, spreadsheets are often created to keep lists of a
@@ -1942,7 +1966,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Answers
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>The data in the “Language” column is formatted in two ways, as an
@@ -1965,7 +1989,8 @@ <h4 class="accordion-header" id="headingSolution1">
 queries to find these issues and address them across your entire
 dataset. Before you can take advantage of all of these tools, you need
 to design your database.</p>
-</section><section id="database-design"><h2 class="section-heading">Database Design<a class="anchor" aria-label="anchor" href="#database-design"></a>
+</section><section><h2 class="section-heading" id="database-design">Database Design<a class="anchor" aria-label="anchor" href="#database-design"></a>
+<a class="anchor" aria-label="anchor" href="#database-design"></a>
 </h2>
 <hr class="half-width">
 <p>Database design involves a model or plan developed to determine how
@@ -1973,7 +1998,8 @@ <h4 class="accordion-header" id="headingSolution1">
 data will be stored, how they will be classified, and the
 interrelationships between the data across different tables in the
 database.</p>
-</section><section id="terminology"><h2 class="section-heading">Terminology<a class="anchor" aria-label="anchor" href="#terminology"></a>
+</section><section><h2 class="section-heading" id="terminology">Terminology<a class="anchor" aria-label="anchor" href="#terminology"></a>
+<a class="anchor" aria-label="anchor" href="#terminology"></a>
 </h2>
 <hr class="half-width">
 <figure><img src="../fig/field-record-value.png" alt="Fields, Records, Values" class="figure mx-auto d-block"></figure><p>In the <a href="01-introduction.html">Introduction to SQL</a> lesson,
@@ -2003,7 +2029,8 @@ <h4 class="accordion-header" id="headingSolution1">
 like to capture, along with how the different entities are related to
 each other. We do this using and entity relationship diagram (ER diagram
 or ERD).</p>
-</section><section id="entity-relationship-diagram-er-diagram-or-erd"><h2 class="section-heading">Entity Relationship Diagram (ER Diagram or ERD)<a class="anchor" aria-label="anchor" href="#entity-relationship-diagram-er-diagram-or-erd"></a>
+</section><section><h2 class="section-heading" id="entity-relationship-diagram-er-diagram-or-erd">Entity Relationship Diagram (ER Diagram or ERD)<a class="anchor" aria-label="anchor" href="#entity-relationship-diagram-er-diagram-or-erd"></a>
+<a class="anchor" aria-label="anchor" href="#entity-relationship-diagram-er-diagram-or-erd"></a>
 </h2>
 <hr class="half-width">
 <p>ERDs are helpful tools for visualising and structuring your data more
@@ -2028,7 +2055,8 @@ <h4 class="accordion-header" id="headingSolution1">
 journals are associated with which publisher in a way that keeps the
 integrity of the data (see <a href="#normalisation">the Normalisation
 section</a> below).</p>
-</section><section id="more-terminology"><h2 class="section-heading">More Terminology<a class="anchor" aria-label="anchor" href="#more-terminology"></a>
+</section><section><h2 class="section-heading" id="more-terminology">More Terminology<a class="anchor" aria-label="anchor" href="#more-terminology"></a>
+<a class="anchor" aria-label="anchor" href="#more-terminology"></a>
 </h2>
 <hr class="half-width">
 <p>The degree of relationship between entities is known as their
@@ -2056,7 +2084,8 @@ <h4 class="accordion-header" id="headingSolution1">
 so it will appear multiple times in that field.</p>
 <p>A key attribute is often included when designing databases to
 facilitate joins.</p>
-</section><section id="normalisation"><h2 class="section-heading">Normalisation<a class="anchor" aria-label="anchor" href="#normalisation"></a>
+</section><section><h2 class="section-heading" id="normalisation">Normalisation<a class="anchor" aria-label="anchor" href="#normalisation"></a>
+<a class="anchor" aria-label="anchor" href="#normalisation"></a>
 </h2>
 <hr class="half-width">
 <p>ERDs are helpful in normalising your data which is a process that can
@@ -2094,7 +2123,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Answers
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>An ‘authors’ table can be created with a many-to-many relationship
@@ -2134,7 +2163,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-09-create"><p>Content from <a href="09-create.html">Creating tables and modifying data</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/09-create.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 25 minutes</p>
 <div class="text-end">
@@ -2378,7 +2407,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </div></section><section id="aio-10-other-tools"><p>Content from <a href="10-other-tools.html">Other database tools</a></p>
 <hr>
 <p>Last updated on 2023-05-02 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/10-other-tools.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 5 minutes</p>
 <div class="text-end">
@@ -2410,7 +2439,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="other-database-tools"><h2 class="section-heading">Other database tools<a class="anchor" aria-label="anchor" href="#other-database-tools"></a>
+<section><h2 class="section-heading" id="other-database-tools">Other database tools<a class="anchor" aria-label="anchor" href="#other-database-tools"></a>
+<a class="anchor" aria-label="anchor" href="#other-database-tools"></a>
 </h2>
 <hr class="half-width">
 <p>For this lesson, <a href="https://sqlitebrowser.org" class="external-link">DB Browser</a>,
@@ -2446,7 +2476,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-11-extra-challenges"><p>Content from <a href="11-extra-challenges.html">Extra challenges (optional)</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/11-extra-challenges.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 35 minutes</p>
 <div class="text-end">
@@ -2478,7 +2508,8 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="extra-challenges-optional"><h2 class="section-heading">Extra challenges (optional)<a class="anchor" aria-label="anchor" href="#extra-challenges-optional"></a>
+<section><h2 class="section-heading" id="extra-challenges-optional">Extra challenges (optional)<a class="anchor" aria-label="anchor" href="#extra-challenges-optional"></a>
+<a class="anchor" aria-label="anchor" href="#extra-challenges-optional"></a>
 </h2>
 <hr class="half-width">
 <p>SQL queries help us <em>ask</em> specific <em>questions</em> which we
@@ -2512,7 +2543,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb1">
 <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2546,7 +2577,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb2">
 <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2579,7 +2610,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb3">
 <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2616,7 +2647,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb4">
 <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2653,7 +2684,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Solution 5
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb5">
 <h3 class="code-label">SQL<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2688,7 +2719,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 </section></section><section id="aio-Bonus_GoodStyle"><p>Content from <a href="Bonus_GoodStyle.html">Good Style</a></p>
 <hr>
 <p>Last updated on 2024-03-26 |
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/episodes/Bonus_GoodStyle.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 10 minutes</p>
 <div class="text-end">
@@ -2720,14 +2751,16 @@ <h3 class="card-title">Objectives</h3>
 </div>
 </div>
 </div>
-<section id="an-introduction-to-good-style"><h2 class="section-heading">An Introduction to good style<a class="anchor" aria-label="anchor" href="#an-introduction-to-good-style"></a>
+<section><h2 class="section-heading" id="an-introduction-to-good-style">An Introduction to good style<a class="anchor" aria-label="anchor" href="#an-introduction-to-good-style"></a>
+<a class="anchor" aria-label="anchor" href="#an-introduction-to-good-style"></a>
 </h2>
 <hr class="half-width">
 <p>There are many ways to write an SQL queries, but some look better
 than others. Abiding by good style guidelines will make your SQL queries
 easier to read, especially if you are sharing them with others. These
 are some quick tips for making your SQL look clean.</p>
-</section><section id="pick-column-names-that-are-precise-and-short"><h2 class="section-heading">Pick column names that are precise and short<a class="anchor" aria-label="anchor" href="#pick-column-names-that-are-precise-and-short"></a>
+</section><section><h2 class="section-heading" id="pick-column-names-that-are-precise-and-short">Pick column names that are precise and short<a class="anchor" aria-label="anchor" href="#pick-column-names-that-are-precise-and-short"></a>
+<a class="anchor" aria-label="anchor" href="#pick-column-names-that-are-precise-and-short"></a>
 </h2>
 <hr class="half-width">
 <p>When choosing column names, it’s important to remember that a large
@@ -2737,7 +2770,8 @@ <h3 class="card-title">Objectives</h3>
 you include spaces in your column names, you will get an error message
 when you try to run your queries, so we would recommend using CamelCase,
 or An_Underscore.</p>
-</section><section id="capitalization-sometimes-matters"><h2 class="section-heading">Capitalization (sometimes) matters<a class="anchor" aria-label="anchor" href="#capitalization-sometimes-matters"></a>
+</section><section><h2 class="section-heading" id="capitalization-sometimes-matters">Capitalization (sometimes) matters<a class="anchor" aria-label="anchor" href="#capitalization-sometimes-matters"></a>
+<a class="anchor" aria-label="anchor" href="#capitalization-sometimes-matters"></a>
 </h2>
 <hr class="half-width">
 <p>In section two, we talked about SQL keywords/commands being
@@ -2747,7 +2781,8 @@ <h3 class="card-title">Objectives</h3>
 considered good style.”). But did you know that in some SQL programs,
 depending on the settings, table and column names are case sensitive? If
 your query isn’t working, check the capitalization.</p>
-</section><section id="readability"><h2 class="section-heading">Readability<a class="anchor" aria-label="anchor" href="#readability"></a>
+</section><section><h2 class="section-heading" id="readability">Readability<a class="anchor" aria-label="anchor" href="#readability"></a>
+<a class="anchor" aria-label="anchor" href="#readability"></a>
 </h2>
 <hr class="half-width">
 <p>As you may have noticed, we are able to write our query on one line,
@@ -2801,18 +2836,18 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
 <div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/README.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
 			</div>
@@ -2837,8 +2872,8 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
   "url": "https://librarycarpentry.github.io/lc-sql/instructor/aio.html",
   "identifier": "https://librarycarpentry.github.io/lc-sql/instructor/aio.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-07-02",
-  "datePublished": "2024-07-02"
+  "dateModified": "2024-07-09",
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
diff --git a/instructor/discuss.html b/instructor/discuss.html
index 506183ce..69bc9dcb 100644
--- a/instructor/discuss.html
+++ b/instructor/discuss.html
@@ -46,7 +46,7 @@
             </li>
           </ul></li>
       </div>
-      
+
       <div class="dropdown" id="instructor-dropdown">
         <button class="btn btn-secondary dropdown-toggle bordered-button" type="button" id="dropdownMenu1" data-bs-toggle="dropdown" aria-expanded="false">
           <i aria-hidden="true" class="icon" data-feather="eye"></i> Instructor View <i data-feather="chevron-down"></i>
@@ -170,7 +170,7 @@ <h2 class="accordion-header" id="flush-headingNine">
                 </div><!--/div.accordion-flush-->
               </div><!--div.sidenav-view-selector -->
             </div><!--/div.col -->
-      
+
             <hr></div><!--/div.mobile-row -->
 
           <div class="accordion accordion-flush" id="accordionFlush11">
@@ -189,7 +189,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Schedule</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -198,7 +198,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading2">
         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -207,7 +207,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading3">
         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -216,7 +216,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading4">
         <a href="03-filtering.html">3. Filtering</a>
     </div><!--/div.accordion-header-->
-        
+
   </div><!--/div.accordion-item-->
 </div><!--/div.accordion-flush-->
 
@@ -225,7 +225,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading5">
         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
     </div><!--/div.accordion-header-->
-        
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             <hr class="half-width resources"><a href="../instructor/aio.html">See all in one page</a>
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             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
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       <hr></nav><main id="main-content" class="main-content"><div class="container lesson-content">
         <h1>Discussion</h1>
         <p>Last updated on 2024-03-26 |
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         </div>
@@ -405,18 +405,18 @@ <h1>Discussion</h1>
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
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         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/learners/discuss.md" class="external-link">Edit on GitHub</a>
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         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
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         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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@@ -441,7 +441,7 @@ <h1>Discussion</h1>
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+  "datePublished": "2024-07-09"
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--- a/instructor/images.html
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 </li>
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@@ -205,7 +205,7 @@ <h2 class="accordion-header" id="flush-headingNine">
 <!--div.sidenav-view-selector -->
             </div>
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         <a href="index.html">Summary and Schedule</a>
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@@ -239,7 +239,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="01-introduction.html">1. Introduction to SQL</a>
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 </div>
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         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
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         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
     </div>
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@@ -287,7 +287,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
         <a href="05-aggregating-calculating.html">5. Aggregating and calculating values</a>
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         <a href="06-joins-aliases.html">6. Joins and aliases</a>
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         <a href="09-create.html">9. Creating tables and modifying data</a>
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         <a href="10-other-tools.html">10. Other database tools</a>
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         <a href="11-extra-challenges.html">11. Extra challenges (optional)</a>
     </div>
 <!--/div.accordion-header-->
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         <a href="Bonus_GoodStyle.html">12. Good Style</a>
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@@ -411,11 +411,11 @@ <h2 class="accordion-header" id="flush-headingTwelve">
             </div>
             <hr class="half-width resources">
 <a href="../instructor/aio.html">See all in one page</a>
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             <hr class="d-none d-sm-block d-md-none">
 <div class="d-grid gap-1">
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           </div>
 <!-- /div.accordion -->
@@ -482,18 +482,18 @@ <h3 id="08-database-design-figure-4">Figure 4</h3>
 <div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/README.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
         <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.5" class="external-link">sandpaper (0.16.5)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.3" class="external-link">varnish (1.0.3)</a></p>
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@@ -518,8 +518,8 @@ <h3 id="08-database-design-figure-4">Figure 4</h3>
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   "identifier": "https://librarycarpentry.github.io/lc-sql/instructor/images.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-07-02",
-  "datePublished": "2024-07-02"
+  "dateModified": "2024-07-09",
+  "datePublished": "2024-07-09"
 }
 
   </script><script>
diff --git a/instructor/index.html b/instructor/index.html
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--- a/instructor/index.html
+++ b/instructor/index.html
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             </li>
           </ul></li>
       </div>
-      
+
       <div class="dropdown" id="instructor-dropdown">
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           <i aria-hidden="true" class="icon" data-feather="eye"></i> Instructor View <i data-feather="chevron-down"></i>
@@ -170,7 +170,7 @@ <h2 class="accordion-header" id="flush-headingNine">
                 </div><!--/div.accordion-flush-->
               </div><!--div.sidenav-view-selector -->
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             <hr></div><!--/div.mobile-row -->
 
           <div class="accordion accordion-flush" id="accordionFlush11">
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         </span>
       
     </div><!--/div.accordion-header-->
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     <div class="accordion-header" id="flush-heading2">
         <a href="01-introduction.html">1. Introduction to SQL</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
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         <a href="02-selecting-sorting-data.html">2. Selecting and sorting data</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
@@ -220,7 +220,7 @@ <h2 class="accordion-header chapters" id="flush-headingEleven">
     <div class="accordion-header" id="flush-heading4">
         <a href="03-filtering.html">3. Filtering</a>
     </div><!--/div.accordion-header-->
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 </div><!--/div.accordion-flush-->
 
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         <a href="04-ordering-commenting.html">4. Ordering and commenting</a>
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     <div class="accordion-header" id="flush-heading8">
         <a href="07-saving-queries.html">7. Saving queries</a>
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 </div><!--/div.accordion-flush-->
 
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         <a href="08-database-design.html">8. Database design</a>
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         <a href="09-create.html">9. Creating tables and modifying data</a>
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         <a href="10-other-tools.html">10. Other database tools</a>
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 </div><!--/div.accordion-flush-->
 
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     <div class="accordion-header" id="flush-heading12">
         <a href="11-extra-challenges.html">11. Extra challenges (optional)</a>
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 </div><!--/div.accordion-flush-->
 
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         <a href="Bonus_GoodStyle.html">12. Good Style</a>
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               </div>
             </div>
             <hr class="half-width resources"><a href="../instructor/aio.html">See all in one page</a>
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             <hr class="d-none d-sm-block d-md-none"><div class="d-grid gap-1">
-            
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             </div>
           </div><!-- /div.accordion -->
         </div><!-- /div.sidebar-inner -->
@@ -490,10 +490,10 @@ <h2 class="accordion-header" id="flush-headingTwelve">
 </tr></tbody></table><p>
       The actual schedule may vary slightly depending on the topics and exercises chosen by the instructor.
       </p>
-      </section><section id="setup"><section id="software-requirements"><h2 class="section-heading">Software Requirements<a class="anchor" aria-label="anchor" href="#software-requirements"></a>
-</h2>
-<hr class="half-width"></section><section id="db-browser-for-sqlite"><h2 class="section-heading">DB Browser for SQLite<a class="anchor" aria-label="anchor" href="#db-browser-for-sqlite"></a>
-</h2>
+      </section><section id="setup"><section><h2 class="section-heading" id="software-requirements">Software Requirements<a class="anchor" aria-label="anchor" href="#software-requirements"></a>
+<a class="anchor" aria-label="anchor" href="#software-requirements"></a></h2>
+<hr class="half-width"></section><section><h2 class="section-heading" id="db-browser-for-sqlite">DB Browser for SQLite<a class="anchor" aria-label="anchor" href="#db-browser-for-sqlite"></a>
+<a class="anchor" aria-label="anchor" href="#db-browser-for-sqlite"></a></h2>
 <hr class="half-width"><p>You will need to install <a href="https://sqlitebrowser.org" class="external-link">DB
 Browser for SQLite</a> to complete these lessons. DB Browser for SQLite
 provides a graphical user interface for connecting to and interacting
@@ -544,8 +544,8 @@ <h3 id="import-the-sql-file">Import the SQL file<a class="anchor" aria-label="an
 changes made to the database file…”.</li>
 <li>Click “Save”.</li>
 </ol></div>
-</section><section id="alternatives-sqlite-and-sqliteonline"><h2 class="section-heading">Alternatives: SQLite and SqliteOnline<a class="anchor" aria-label="anchor" href="#alternatives-sqlite-and-sqliteonline"></a>
-</h2>
+</section><section><h2 class="section-heading" id="alternatives-sqlite-and-sqliteonline">Alternatives: SQLite and SqliteOnline<a class="anchor" aria-label="anchor" href="#alternatives-sqlite-and-sqliteonline"></a>
+<a class="anchor" aria-label="anchor" href="#alternatives-sqlite-and-sqliteonline"></a></h2>
 <hr class="half-width"><div class="section level3">
 <h3 id="sqlite">SQLite<a class="anchor" aria-label="anchor" href="#sqlite"></a></h3>
 <p>This step is optional. If you are completing the tutorial with DB
@@ -611,18 +611,18 @@ <h4 id="open-the-sql-file-in-sqliteonline">Open the SQL file in SqliteOnline<a c
       		<footer class="row footer mx-md-3"><hr><div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/index.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
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             <hr class="half-width resources">
 <a href="../instructor/aio.html">See all in one page</a>
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+
 
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@@ -522,18 +522,18 @@ <h2 class="accordion-header" id="flush-headingTwelve">
 <div class="col-md-6">
         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/README.md" class="external-link">Edit on GitHub</a>
-        
+
 	
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 			</div>
 			<div class="col-md-6">
-        
+
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-        
+
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+
 
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-            
+
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@@ -364,18 +364,18 @@ <h1>Learner Profiles</h1>
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         <p>This lesson is subject to the <a href="CODE_OF_CONDUCT.html">Code of Conduct</a></p>
         <p>
-        
+
         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/README.md" class="external-link">Edit on GitHub</a>
-        
+
 	
         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
-        
+
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         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
+
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
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         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
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   "identifier": "https://librarycarpentry.github.io/lc-sql/profiles.html",
   "dateCreated": "2018-04-12",
-  "dateModified": "2024-07-02",
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 }
 
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diff --git a/reference.html b/reference.html
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@@ -46,7 +46,7 @@
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     <div class="accordion-header" id="flush-heading1">
         <a href="index.html">Summary and Setup</a>
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         <a href="01-introduction.html">1. Introduction to SQL</a>
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         <h1>SQL Cheat Sheet</h1>
         <p>Last updated on 2024-03-26 |
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         <a href="https://github.com/librarycarpentry/lc-sql/edit/main/learners/reference.md" class="external-link">Edit on GitHub</a>
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         | <a href="https://github.com/librarycarpentry/lc-sql/blob/main/CONTRIBUTING.md" class="external-link">Contributing</a>
         | <a href="https://github.com/librarycarpentry/lc-sql/" class="external-link">Source</a></p>
 				<p><a href="https://github.com/librarycarpentry/lc-sql/blob/main/CITATION" class="external-link">Cite</a> | <a href="mailto:team@carpentries.org">Contact</a> | <a href="https://carpentries.org/about/" class="external-link">About</a></p>
 			</div>
 			<div class="col-md-6">
-        
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-        
+
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