In answer to Paul's response: Line 54 does the following:
$sth->execute() or die $sth->errstr;
in the following chunk of code that is in my Perl script:
# update the gpa of 1000 random students
for ($i = 1 ; $i <= $num_updates ; $i++) {
$r = int(rand(9999)) + 1;
$sth=$dbh->prepare("update $table set gpa = gpa+0.01
where student_id = $r") or die $dbh->errstr;
$sth->execute() or die $sth->errstr;
}
On Sun, 8 Dec 2002, Paul DuBois wrote:
> At 23:09 -0500 12/8/02, Geetika Tewari wrote:
> >Hi,
> >
> >I am getting the following error while trying to do read-write queries on
> >MySQL. Does anyone know what this error means?
> >The name of the script that generated this error is called
> >randomreadwrite.pl.
> >
> >Can't lock file (errno: 12) at ./randomreadwrite.pl line 54.
> >
> >Thanks very much.
>
>
> Without knowing more about the script, it's difficult to say.
> Does line 54 perform some MySQL operation, or is it doing some
> filesystem operation for itself, for example. It may not be a
> MySQL-related error at all.
>
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