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Posted to embperl@perl.apache.org by Kaare Rasmussen <ka...@kakidata.dk> on 2002/09/14 15:05:42 UTC

null values

To my surprise, DBIx::Recordset turns null values into undefined hash values 
when fetching with a Search. I'd expect them to be defined but empty.

Something like !IgnoreEmpty, except this works (according to perldoc) from 
hash to database. I'd like to find a setting so it works the other wayt too.

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Re: null values

Posted by Gerald Richter <ri...@ecos.de>.

> To my surprise, DBIx::Recordset turns null values into undefined hash
values
> when fetching with a Search.

That's what DBI does...

> I'd expect them to be defined but empty.

How would you distinguish between a NULL and an empty string. Ok, some
Oracle versions don't make a difference for these two at all, but there are
other databases as well :-)

>
> Something like !IgnoreEmpty, except this works (according to perldoc) from
> hash to database. I'd like to find a setting so it works the other wayt
too.
>

There is no such setting yet. You can make a loop like
*set = DBIx::Recordset -> Search (....
foreach my $n (@{$set -> Names})
    {
    $rec = defined($set{$n)?$set($n):'' ;
    }

Gerald

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