Here: <? $sql = "DELETE [columumname] FROM [tablename] WHERE id = '$id'";
That's your basic delete statement in PHP. -----Original Message----- From: sunny [mailto:[EMAIL PROTECTED]] Sent: Friday, March 29, 2002 6:18 PM To: Rodney Broom; [EMAIL PROTECTED] Subject: Re: Why does my delete not work :( So you're saying there's no actual DELETE statement for this? There is no way in hell I can write any SQL to do that?? Thats sucks....... :( Thanks for the example, but how do I run it? I've only used PHP for taking information out of a database and other simple MySQL queries so while your Perl example kinda makes sense, I don't understand how to work it. Do I just put that in a file and run open the file in a browser? Thanks! sunny At 08:12 29/03/02 -0700, Rodney Broom wrote: >Good morning Sunny, > > >From: sunny <[EMAIL PROTECTED]> > > > ...substituting SELECT with DELETE doesn't work :( > >That's right, that's how MySQL works. And it doesn't support sub-queries >for this case, either. So you can't say: > > delete from table where field in (select field from other_table) > >I'd suggest doing this from another language, like Perl. For instance: > > $list_list = $dbh->selectall_arrayref(qq{ > SELECT messages.topicid > FROM messages > LEFT OUTER JOIN main > ON messages.topicid=main.topicid > WHERE main.topicid is null > }); > > for my $row ( @{$list_list} ) { > $dbh->do(qq{DELETE FROM messages WHERE topicid = $row->[0]}); > } > > >Note, my example is rough, and not tuned for performance. But you get the >idea. Hollar if you still need a hand with this. > > > >--- >Rodney Broom >Programmer: Desert.Net > > > > >--------------------------------------------------------------------- >Before posting, please check: > http://www.mysql.com/manual.php (the manual) > http://lists.mysql.com/ (the list archive) > >To request this thread, e-mail <[EMAIL PROTECTED]> >To unsubscribe, e-mail ><[EMAIL PROTECTED]> >Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
