Looks like Skeeve beat me to it: 
my $big_sql = $dbh->prepare("SELECT sec.KEY, sec.TEST, sec.INSTANCE, s
+ec.ID, bt.key, bt.name, bt.state, stats.CCS, stats.kbps, stats.MBytes
+ from sec, bt, stats where sec.id = stats.id and stats.id = bt.id and
+ bt.id = ? and bt.hid = ?");

[download]
Which is untested but I guess is right for MySql. Also, you might want to make sure you have the ID field indexed on all of those tables as well as that HID.

Celebrate Intellectual Diversity

In reply to Re: Speed up DBD::MySQL Queries by InfiniteSilence
in thread Speed up DBD::MySQL Queries by awohld

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