Sorry, I'm used to oracle, thought this was a standard query.
> Brian wrote: > > select s.userid from surveyanswers s where s.userid not in (select > > distinct u.id from users u) > > > > > > On Tue, 19 Oct 2004 16:30:29 -0600, Jonathan Duncan <[EMAIL PROTECTED]> wrote: > > > >>I have a user who is using the following query to try and delete rows > >>from one table based on the lack of a user id in another table: > >> > >>SELECT s.questionid, s.userid, s.questionanswer > >>FROM Users u, SurveyAnswers s > >>WHERE u.id != s.userid > >> > >>The corresponding user rows have already be deleted from the table > >>Users. Thus, this of course seems to match on just about everything > >>since there is no actualy record in the Users table to match on. > >> > >>Is there some way to match on a lack of information? > >> > >>Thanks, > >>Jonathan Duncan > >> > >>-- > >>MySQL General Mailing List > >>For list archives: http://lists.mysql.com/mysql > >>To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] > >> > >> > > > > > > -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
