how to speedup mysql queries?
Hello, i have 1 problem, i have 2 arrays, and want to check it values in mysql database,
this script works well, but when here is 30000 and more queries it works very slow....
takes 5-10 minutes...Maybe here i need write some trigger? or hese is another way?
foreach $c1(@c1) {
foreach $c2(@c2)
{
$sth = $dbh->prepare( "SELECT a.id FROM a, a_b, b WHERE a.id = '$c1 AND .....')
or die "Can't prepare SQL statement: $DBI::errstr\n";
$sth->execute;
$row = $sth->fetchrow();
$sth = $dbh->prepare( "SELECT a.id FROM a, a_b, b WHERE a.id = '$c2' AND....)
or die "Can't prepare SQL statement: $DBI::errstr\n";
$sth->execute;
$row1 = $sth->fetchrow( );
if ($row == $row1)
{
push @row3, $row
}
}
}
Edited 1 time(s). Last edit at 10/19/2006 07:25AM by Rytis Diciunas.
Subject
Written By
Posted
how to speedup mysql queries?
October 19, 2006 04:55AM
Sorry, you can't reply to this topic. It has been closed.
Content reproduced on this site is the property of the respective copyright holders.
It is not reviewed in advance by Oracle and does not necessarily represent the opinion
of Oracle or any other party.