public Connection::queryRange($query, $from, $count, array $args

public Connection::prepare($statement, array $driver_options

public Connection::__construct(\PDO $connection, array $con

public Connection::mapConditionOperator($operator)

public Schema::dropField($table, $field) Drop

public Schema::addIndex($table, $name, $fields, array $spec)

public Schema::getFieldTypeMap() This

public static Connection::sqlFunctionRand($seed = NULL)

public Tasks::name() Return

public Schema::tableExists($table) Check