I'm running a mod_perl program on Apache (where else?), and it uses Apache::DBI and DBD::mysql to connect with my database. In this database I have a table of "quotes", and I use the following code to attempt to select a random one.

my $sth = $state->{'DBH'}->prepare('SELECT quote,author FROM quotes OR
+DER BY RAND() LIMIT 1');
$sth->execute;
my $row = $sth->fetchrow_arrayref;
$sth->finish;

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It seems to consistantly select 1 quote for each thread that apache is running, and those are the only quotes I can get out of it through normal use. Simply going in and executing that statement from a terminal yields different ones almost all the time. When there are 80 to choose from, and 3 threads (non-production server), it pushes probability that I could consistantly get only the same three quotes. Does Apache::DBI, DBI, DBD::mysql or MySQL itself cache responses?




My code doesn't have bugs, it just develops random features.

Flame ~ Lead Programmer: GMS (DOWN) | GMS (DOWN)

In reply to Apache::DBI, DBI, DBD::MySql and MySQL cache? by Flame

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