Front page | perl.beginners |
Postings from December 2002
Thank You!
That worked. I had tried the {NAME} option before but I thought it returned
a reference to the result array
and so de-referenced it first, probably breaking it ;-)
Regards,
Craig
"Jenda Krynicky" <Jenda@Krynicky.cz> wrote in message
news:3E11A19B.15415.363C20E1@localhost...
> To: beginners@perl.org
> From: "Craig Williams" <news@ip80.com>
> Subject: Really stuck: DBI, mysqlPP.
> Date sent: Tue, 31 Dec 2002 00:48:44 -0000
>
> > Ok, firstly - I don't believe this is a mysql issue as I have a
> > working server which I can prove and the fact I've just learnt Perl
> > was my reason for posting here, maybe I've screwed up the syntax.
> >
> > I just installed the modules for DBI and MySQL and they seem to work
> > great except for one aspect. Getting column names.
> >
> > Code example; (code sits in a debug sub)
> >
> > my $sq = $myconn->prepare("show columns from as_codes;");
> > $sq->execute();
> > while (@tmp = $sq->fetchrow_array())
> > {
> > print $tmp[0], "\n";
> > }
> >
> > $myconn is a working connection: the select statements work great.
> >
> > The above always produces nothing, the while loop never runs. I've
> > also tried the "describe" sql statement but I get the same results.
> > The table as_codes has about 12 columns. I even tried the DBI, {NAME}
> > option but got no columns returned.
> >
> > If I go into mysql admin and type the above statement then it works.
>
> Most probably the
> show columns ...
> is not a SQL command, but a mysql admin one.
>
> Try
>
> my $sq = $myconn->prepare("select * from as_codes where 1 = 0;");
> $sq->execute(); # may not be necessary
> @columns = @{$sq->{NAME}};
>
>
> HTH, Jenda
> ===== Jenda@Krynicky.cz === http://Jenda.Krynicky.cz =====
> When it comes to wine, women and song, wizards are allowed
> to get drunk and croon as much as they like.
> -- Terry Pratchett in Sourcery
>
Thread Previous
|
Thread Next