Fellow monks, I have an odd database problem. I'm implementing user registration on my website; in my user validation, I have code like this: 
$SQL = "SELECT COUNT(*) FROM Members WHERE Nickname = '?'";

$Statement = $Database->prepare($SQL);
$Statement->execute($NickName);

my @numrows = $Statement->fetchrow_array;
rint "NumRows: @numrows";
if (($Statement->rows) > 0)
{
    LogError("NICK_TAKEN");
    return("-1");
}

[download]
The problem is this: I can never get the $Statement to return anything when selecting a Nickname I know exists. If I try this in the mysql monitor (using the same user login and machine as this script runs on, and the exact same query), I get back one row; but inside this script, nothing. I've also tried my $NumRows = $Statement->rows but that always returns zero rows. I'm using CGI.PM with fatalstobrowser. I tried modifying the username, and it expectedly spits out a database login error with the modified username - but with the "correct" username, I get nothing. I've done things like this before without a problem. Where can I look that would give me an indication of what is breaking down?

UPDATE: Thanks for the hints, everyone. I should have clarified earlier that I actually tried to select the rows and then count them, then I read the CPAN warning and decided to use SELECT COUNT(*) instead. In the end, removing the single quotes worked.

In reply to Odd Database Behavior by SpritusMaximus

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