Everton,

Monday, January 21, 2002, 6:59:39 AM, you wrote:
EBY> i'm running a sql query from a php page:

EBY> if($DEl && $cid && $sid && $did) {

EBY>         $d0->query("SELECT id FROM crd_favorites WHERE did='$did' AND
EBY> uid='$uid'");

EBY>         if($d0->num_rows()<1) {

EBY>                 $favMessage="Cartao #$did nao estao no seu favoritos.";

EBY>         } else {

EBY>                 $d0->query("DELETE FROM crd_favorites WHERE uid='$uid' AND
EBY> did='$did'");
EBY>                 $favMessage="Cartao #$did deletado do seu favoritos.";

EBY>         }

EBY> }


EBY> my table structure:

EBY> CREATE TABLE crd_favorites (
EBY>   id int(11) NOT NULL auto_increment,
EBY>   uid int(11) NOT NULL default '0',
EBY>   cid int(11) NOT NULL default '0',
EBY>   sid int(11) NOT NULL default '0',
EBY>   did int(11) NOT NULL default '0',
EBY>   PRIMARY KEY  (id)
EBY> ) TYPE=MyISAM COMMENT='[Cartoes] Relacionamento entre cat, sub e dat';

If you mean that queries are processed slowly - you should probably add some indexes.

 CREATE TABLE crd_favorites (
   id int(11) NOT NULL auto_increment,
   uid int(11) NOT NULL default '0',
   cid int(11) NOT NULL default '0',
   sid int(11) NOT NULL default '0',
   did int(11) NOT NULL default '0',
   PRIMARY KEY  (id),
   INDEX(uid),
   INDEX(did)
 ) TYPE=MyISAM COMMENT='[Cartoes] Relacionamento entre cat, sub e dat';

[]

EBY> if hope someone can help me because i'm with serius problem with delete and
EBY> updates queries this commands are overheading my tables... ;(

..but I'm not sure that I understand you right about so-called "overhead" problem. 
Could you please tell us more.

EBY> thanks.. Everton





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