public limit (mixed $sqlQuery, mixed $number) Appends a LIMIT clause to $sqlQuery argument

public createSavepoint (mixed $name) Creates a new savepoint

public boolean delete (string | array $table, [string $whereCondition], [array $placeholders], [array

public dropColumn (mixed $tableName, mixed $schemaName, mixed $columnName) Drops a column from a

public describeReferences (mixed $table, [mixed $schema]) Lists table references

public listViews ([mixed $schemaName]) List all views on a database

public tableExists (mixed $tableName, [mixed $schemaName]) Generates SQL checking for the existence of a

public string getConnectionId () Gets the active connection unique identifier

public releaseSavepoint (mixed $name) Releases given savepoint

public getDescriptor () Return descriptor used to connect to the active database