public function getDefinition($separator=',')
	{
		$commands = self::$commands;

		if (sizeof($commands) > 0) {
			return implode($separator, $commands);
		}

		return null;
	}
public function getDefinition($separator=',')
	{
		$commands = self::$commands;

		if (sizeof($commands) > 0) {
			return implode($separator, $commands);
		}

		return null;
	}
public function getDefinition ( $ separator = ',' ) { $ commands = self :: $ commands ; if ( sizeof ( $ commands ) > 0 ) { return implode ( $ separator , $ commands ) ; } return null ; }
Returns type sql definition.

@access 	public
@return 	<Mixed>
Returns type sql definition .