Obvious mistake in query?

2002-06-18 Thread Phoebe Bright
I am trying to list items in t1 (alias new) that are not in project so I tried the query suggested on an earlier mail: select new.projectdesc,project.projectname from t1 as new left join project on new.projectdesc=project.projectname where project.projectname=NULL | projectdesc | projectname |

Re: Obvious mistake in query?

2002-06-18 Thread João Paulo Vasconcellos
You are testing nullity using equal, but you must use IS NULL to test against NULL values. http://www.mysql.com/doc/C/o/Comparison_Operators.html On Tuesday 18 June 2002 15:11, Phoebe Bright wrote: I am trying to list items in t1 (alias new) that are not in project so I tried the query

Re: Obvious mistake in query?

2002-06-18 Thread Keith C. Ivey
On 18 Jun 2002, at 19:11, Phoebe Bright [EMAIL PROTECTED] wrote: select new.projectdesc,project.projectname from t1 as new left join project on new.projectdesc=project.projectname where project.projectname=NULL | projectdesc | projectname | Number of Results: 0 You can't use = with

Re: Obvious mistake in query?

2002-06-18 Thread Phoebe Bright
Thanks! Phoebe. on 18/6/02 19:32, Ryan Fox at [EMAIL PROTECTED] wrote: On Tue, 2002-06-18 at 14:11, Phoebe Bright wrote: I am trying to list items in t1 (alias new) that are not in project so I tried the query suggested on an earlier mail: select new.projectdesc,project.projectname