abstract public describeColumns (mixed $table, [mixed $schema]) ...

abstract public listTables ([mixed $schemaName]) ...

abstract public tableExists (mixed $tableName, [mixed $schemaName]) ...

abstract public limit (mixed $sqlQuery, mixed $number) ...

abstract public addForeignKey (mixed $tableName, mixed $schemaName,

abstract public supportsReleaseSavepoints () ...

abstract public rollbackSavepoint (mixed $name) ...

abstract public dropIndex (mixed $tableName, mixed $schemaName, mixed $indexName) ...

abstract public releaseSavepoint (mixed $name) ...

abstract public forUpdate (mixed $sqlQuery) ...