~drizzle-trunk/drizzle/development

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query:
	select | select | select | select | select |
	select | select | select | select | select |
	select | select | select | select | select |
	dml | dml | transaction | alter ;

dml:
	update | insert | delete ;

select:
	SELECT select_item FROM join where order_by limit;

select_item:
	* | X . _field ;

join:
	_table AS X | 
	_table AS X LEFT JOIN _table AS Y ON ( X . _field = Y . _field ) ;

where:
	|
	WHERE X . _field < value |
	WHERE X . _field > value |
	WHERE X . _field = value ;

where_delete:
	|
	WHERE _field < value |
	WHERE _field > value |
	WHERE _field = value ;

order_by:
	| ORDER BY X . _field ;

limit:
	| LIMIT _digit ;
	
insert:
	INSERT INTO _table ( _field , _field ) VALUES ( value , value ) ;

update:
	UPDATE _table AS X SET _field = value where order_by limit ;

delete:
	DELETE FROM _table where_delete LIMIT _digit ;

transaction:
	START TRANSACTION | COMMIT | ROLLBACK | SAVEPOINT A | ROLLBACK TO SAVEPOINT A;

value:
	' _letter ' | _digit | _date | _datetime | _time | _english ;

alter:
        ALTER TABLE _table DROP KEY letter |
        ALTER TABLE _table DROP KEY _field |
        ALTER TABLE _table ADD KEY letter ( _field ) ;