Helo, i have one problem, i have two arrays and want to check its values in mysql databases. i wrote this script, but when here is 30000 queries and more it works very slow. each time it looks to mysql and gets results. how to speed up this proccess. Maybe need to write mysql trigger or here is another way? 
 
foreach $a1(@a1) {
        foreach $b1(@b1)
        {
            $sth = $dbh->prepare( "SELECT a1.ID FROM a1, a1_b1, b1  WH
+ERE b1.id = '$c1                                    AND....);        
+                                           
             $sth->execute;
             my $row = $sth->fetchrow(); 
            $sth = $dbh->prepare( "SELECT a1.id  FROM a1, a1_b1, b1 WH
+ERE b1.id = '$c2 AND.....);                                          
+                                              
             $sth->execute;                                           
+       
             my $row1 = $sth->fetchrow( );
            if ($row1 = $row2)
              {
              push @row, $row1;
              }

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In reply to how to speed up querys to mysql by rycagaa

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