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in reply to Re: Yet Another Unitialized Value Question
in thread Yet Another Unitialized Value Question

The column is a boolean flag with a not null constraint. I assume if fetchrow returns no rows, lock is undefined, but then I don't reference it again.

If there is a row, then lock must be 0 or 1.
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Re: Re: Re: Yet Another Unitialized Value Question
by sandfly (Beadle) on Sep 22, 2003 at 20:11 UTC
    Are you sure you have the right line?
    undef $lock; if ($lock) ...
    does not cause a warning for me (perl 5.8.0). It's not doing a numerical == comparison.

    Have you tried using the debugger?