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Now, I know there's a difference between "" and undef in Perl, just like I know there's a difference between "" and NULL in my database.
You do? Not if your database follows the SQL-92 standard! Seriously, databases are not supposed to have the idea of an empty string. I learned this from mpeppler when he explained to me why DBD::Sybase was converting empty strings into spaces. Of course to confuse the issue, some databases (eg MySQL IIRC) do allow empty strings. In reply to Re: Writing It Myself, DWIM, and Expectations
by tilly
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