The connection object on which to run this query. Type:

protected StatementPrefetch::throwPDOException()

A unique identifier for this query object. File core/lib/Drupal/Core/Database/Query/SelectExtender.php

public Connection::rollbackSavepoint($savepoint_name = 'mimi

public Delete::execute() Executes the

public Connection::__construct(\PDO $connection, array $conn

public PagerSelectExtender::limit($limit = 10)

protected Statement::__construct(Connection $dbh)

public Condition::compiled() Check

public Select::havingIsNull($field) Sets