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Re: Perl DBI NULL and undef

by rovf (Priest)
on Aug 22, 2012 at 08:26 UTC ( #988979=note: print w/replies, xml ) Need Help??

in reply to Perl DBI NULL and undef

How can I separate the undef data and NULL data?
Hmmmm.... This question doesn't make sense to me, for 'undef' is a concept in the Perl domain, and 'NULL' is a concept in the SQL domain. This means that in Perl you don't have NULL, and in SQL, you don't have undef. From DBI:

NULL values are represented by undefined values in Perl

Ronald Fischer <>

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