$pdo public property The PHP PDO instance associated with this

$slave public read-only property The currently active

$slaveConfig public property The configuration that should be

beginTransaction() public method Starts a transaction

$enableSchemaCache public property Whether to enable schema caching

$serverStatusCache public property The cache object or the ID

createPdoInstance() protected method Creates the PDO instance

$password public property The password for establishing DB connection

$schemaCacheExclude public property List of tables whose metadata

EVENT_BEGIN_TRANSACTION event of type \yii\db\Event An event that