$schema public read-only property The schema information

$queryCacheDuration public property The default number of seconds

transaction() public method Executes callback provided

open() public method Establishes a DB connection.

getMasterPdo() public method Returns the PDO instance

initConnection() protected method Initializes the DB connection

$tablePrefix public property The common prefix or suffix for table

EVENT_ROLLBACK_TRANSACTION event of type \yii\db\Event An event

$transaction public read-only property The currently

getSlavePdo() public method Returns the PDO instance for