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Re: how to speed up querys to mysql

by reneeb (Chaplain)
on Oct 19, 2006 at 10:59 UTC ( #579327=note: print w/ replies, xml ) Need Help??


in reply to how to speed up querys to mysql

You should prepare the statements before you iterate through the loops and use the ?-notation:

my $statement = 'SELECT a1.ID FROM a1, a1_b1, b1 WHERE b1.id = ? AND a +1 = ?'; my $sth = $dbh->prepare($statement) or die $dbh->errstr(); for my $a1(@array1){ for my $b1 (@array2){ $sth->execute($b1,$a1) or die $dbh->errstr(); # ... other stuff ... } }

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