Проверка целостности БД

CREATE TABLE `cms_hits` (
`id` int(11)  NOT NULL auto_increment, 
`pubdate` datetime  NOT NULL , 
`ip` varchar(16)  NOT NULL , 
`item_id` int(11)  NOT NULL , 
`target` varchar(30)  NOT NULL , 
PRIMARY KEY  (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=cp1251;
 
CREATE TABLE `cms_uc_tags` (
`id` int(11)  NOT NULL auto_increment, 
`tag` varchar(200)  NOT NULL , 
`item_id` int(11)  NOT NULL , 
PRIMARY KEY  (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=cp1251;