Hi,

in this case I have two guesses:

• Columns DP1 and DP2 don't exist, so that select * is fetching something different.
• You have a weird case sensitivity problem, where one part of the stack seems to be not case sensitive and the other part is case sensitive.

But, by the way: Whe you work with DBI and want to do the error handling on your own, than you have to check every DBI method, e.g. my $sth = $dbh->prepare($sql); should also be checked. On the other handside you can enable exceptions with $dbh->{RaiseError} = 1; which is IMHO much easier and an exception is thrown as soon as something went wrong. Especially in debugging cases I would prefer to set RaiseError.

McA

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