protected Schema::createKeySql($fields)

public Select::forUpdate($set = TRUE) Add

final public static Database::addConnectionInfo($key, $target, array $info)

public Schema::dropTable($table) Drop

Array of fields to update to an expression in case of a duplicate record. This variable is a nested array in the following format:

public Connection::schema() Returns

Reference to the database connection object for this statement. The name $dbh is inherited from \PDOStatement.

public SelectExtender::extend($extender_name)

public StatementPrefetch::fetchCol($index = 0)

public Schema::findTables($table_expression)