Main

.vscode/settings.json

@@ -18,7 +18,6 @@
   "screencastMode.onlyKeyboardShortcuts": true,
   "terminal.integrated.fontSize": 18,
   "window.zoomLevel": 3,
-  "workbench.activityBar.visible": true,
   "workbench.colorTheme": "Default Light+",
   "workbench.fontAliasing": "antialiased",
   "workbench.statusBar.visible": true,

Scripts/02-02.sql

@@ -8,7 +8,7 @@ SELECT emp.employeeId,
 FROM sales sls
 INNER JOIN employee emp
     ON sls.employeeId = emp.employeeId
-WHERE sls.soldDate >= date('now','start of year')
+WHERE sls.soldDate >= date(2022-01-01)
 GROUP BY emp.employeeId, emp.firstName, emp.lastName
 
 

Scripts/03-03.sql

@@ -18,7 +18,7 @@ WHERE EngineType = 'Electric';
 
 
 -- Final query
-SELECT sls.soldDate, sls.salesAmount, inv.colour, inv.year
+SELECT sls.salesId,sls.soldDate, sls.salesAmount, inv.colour, inv.year
 FROM sales sls
 INNER JOIN inventory inv
   ON sls.inventoryId = inv.inventoryId

mysqlcodes/query1.sql

@@ -0,0 +1,5 @@
+SELECT e1.firstName ,e1.lastName , e2.firstName as Manager_Name
+
+FROM employee e1
+LEFT JOIN employee as e2
+on e1.managerId = e2.employeeId;

mysqlcodes/query2.sql

@@ -0,0 +1,6 @@
+SELECT e.employeeId,e.firstName,e.lastName,count(s.employeeId) as CarsSold
+FROM employee e
+LEFT JOIN sales s 
+ON e.employeeId = s.employeeId
+GROUP BY e.employeeId,e.firstName,e.lastName
+ORDER BY CarsSold DESC

mysqlcodes/query3.sql

@@ -0,0 +1,8 @@
+SELECT e.employeeId,e.firstName,e.lastName,count(s.salesId) as car_count,
+max(s.salesAmount) AS max,min(s.salesAmount) as min
+FROM employee e
+LEFT JOIN sales s
+ON e.employeeId = s.employeeId
+GROUP BY e.employeeId,e.firstName,e.lastName
+HAVING count(s.salesId) > 5
+ORDER by car_count DESC

mysqlcodes/query4.sql

@@ -0,0 +1,3 @@
+SELECT strftime('%Y',soldDate),sum(salesAmount)
+from sales
+GROUP BY strftime('%Y',soldDate)

mysqlcodes/query5.sql

@@ -0,0 +1,7 @@
+SELECT e.employeeId,strftime('%m',s.soldDate),sum(s.salesAmount)
+from sales s
+LEFT JOIN employee e ON e.employeeId = s.employeeId
+WHERE s.soldDate >= '2021-01-01'
+AND s.soldDate < '2022-01-01'
+GROUP BY e.employeeId,strftime('%m',s.soldDate)
+ORDER BY e.employeeId,strftime('%m',s.soldDate) 

mysqlcodes/query6.sql

@@ -0,0 +1,7 @@
+SELECT s.salesId
+from sales s
+LEFT JOIN inventory i 
+on s.inventoryId = i.inventoryId
+  LEFT JOIN model m
+  on i.modelId = m.modelId
+  WHERE EngineType = 'Electric'