api.md

class Database

The Database class represents a connection that can prepare and execute SQL statements.

Methods

new Database(path, [options]) ⇒ Database

Creates a new database connection.

Param	Type	Description
path	string	Path to the database file
options	object	Options.

The path parameter points to the SQLite database file to open. If the file pointed to by path does not exists, it will be created. To open an in-memory database, please pass :memory: as the path parameter.

You can use the options parameter to specify various options. Options supported by the parameter are:

• syncUrl: open the database as embedded replica synchronizing from the provided URL.
• syncPeriod: synchronize the database periodically every syncPeriod seconds.
• authToken: authentication token for the provider URL (optional).

The function returns a Database object.

prepare(sql) ⇒ Statement

Prepares a SQL statement for execution.

Param	Type	Description
sql	string	The SQL statement string to prepare.

The function returns a Statement object.

transaction(function) ⇒ function

Returns a function that runs the given function in a transaction.

Param	Type	Description
function	function	The function to run in a transaction.

pragma(string, [options]) ⇒ results

This function is currently not supported.

backup(destination, [options]) ⇒ promise

This function is currently not supported.

serialize([options]) ⇒ Buffer

This function is currently not supported.

function(name, [options], function) ⇒ this

This function is currently not supported.

aggregate(name, options) ⇒ this

This function is currently not supported.

table(name, definition) ⇒ this

This function is currently not supported.

loadExtension(path, [entryPoint]) ⇒ this

Loads a SQLite3 extension

exec(sql) ⇒ this

Executes a SQL statement.

Param	Type	Description
sql	string	The SQL statement string to execute.

close() ⇒ this

Closes the database connection.

class Statement

Methods

run([...bindParameters]) ⇒ object

Executes the SQL statement and returns an info object.

Param	Type	Description
bindParameters	array of objects	The bind parameters for executing the statement.

The returned info object contains two properties: changes that describes the number of modified rows and info.lastInsertRowid that represents the rowid of the last inserted row.

get([...bindParameters]) ⇒ row

Executes the SQL statement and returns the first row.

Param	Type	Description
bindParameters	array of objects	The bind parameters for executing the statement.

all([...bindParameters]) ⇒ array of rows

Executes the SQL statement and returns an array of the resulting rows.

Param	Type	Description
bindParameters	array of objects	The bind parameters for executing the statement.

iterate([...bindParameters]) ⇒ iterator

Executes the SQL statement and returns an iterator to the resulting rows.

Param	Type	Description
bindParameters	array of objects	The bind parameters for executing the statement.

pluck([toggleState]) ⇒ this

This function is currently not supported.

expand([toggleState]) ⇒ this

This function is currently not supported.

raw([rawMode]) ⇒ this

Toggle raw mode.

Param	Type	Description
rawMode	boolean	Enable or disable raw mode. If you don't pass the parameter, raw mode is enabled.

This function enables or disables raw mode. Prepared statements return objects by default, but if raw mode is enabled, the functions return arrays instead.

columns() ⇒ array of objects

Returns the columns in the result set returned by this prepared statement.

bind([...bindParameters]) ⇒ this

This function is currently not supported.