public function isOracle()
    {
        static $r;
        if (is_null($r)) {
            $r = $this->driver->getPlatformName() == self::ORACLE_PLATFORM;
        }
        return $r;
    }
public function isOracle()
    {
        static $r;
        if (is_null($r)) {
            $r = $this->driver->getPlatformName() == self::ORACLE_PLATFORM;
        }
        return $r;
    }
public function isOracle ( ) { static $ r ; if ( is_null ( $ r ) ) { $ r = $ this -> driver -> getPlatformName ( ) == self :: ORACLE_PLATFORM ; } return $ r ; }
Is oralce platform

@return bool
Is oralce platform