$serverStatusCache public property The cache object or the ID

$dsn public property The Data Source Name, or DSN, contains the

$enableQueryCache public property Whether to enable query caching

$queryCache public property The cache object or the ID of the

$schemaCache public property The cache object or the ID of the

$slaveConfig public property The configuration that should be

$slave public read-only property The currently active

$password public property The password for establishing DB connection

createPdoInstance() protected method Creates the PDO instance

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