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RE: RE: Tricks with DBI

by btrott (Parson)
on May 31, 2000 at 20:43 UTC ( #15640=note: print w/replies, xml ) Need Help??


in reply to RE: Tricks with DBI
in thread Tricks with DBI

Thanks for the suggestions. You're quite right about bind_columns being called after execute; I've been bitten by that in the past.

As for the 4 arguments to bind_columns, and the first argument being undef... I believe this is an anachronism of DBI. I just looked at the manpage, and you're right that it seems to only expect 3 arguments, now.

In the past, though, I *think* the first argument to bind_columns was supposed to be a hash ref. So I got into the habit of using undef as the first arg, because I never cared about passing anything in the hash ref. I can't find that in the DBI manpage anymore, but I did find this:

bind_columns .... For compatibility with old scripts, if the first parameter is undef or a hash reference it will be ignored.
I don't remember what the hash ref was supposed to hold--nor would I, really, since I never actually used it. :) I always just used undef. Thanks for pointing this out.

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