How about something like this?  Not sure if it does the join before or after
the where clause... 

Select * from lessons left join students on
lessons.lessonID=students.lessonID where students.studentID=#studentID# or
ISNULL students.studentID 

-----Original Message-----
From: Steve Bryant [mailto:[EMAIL PROTECTED] 
Sent: Monday, March 14, 2005 3:16 PM
To: CF-Talk
Subject: Re: SQL Join Challenge

Nope. That returns only rows from lessons where either no matching row
exists in the students table at all or where a matching row exists for that
student. In other words, it eliminates any lessons for which there is a
match in the students table, but not for the given student.

Steve

>Would this work or am I missing a piece of the puzzle?
>
>Select *
>From lessons
>       Left join lessons on lessons.lessonID = students.lessonID
>Where students.studentID = #studentID# 
>
>
>John Burns
>Certified Advanced ColdFusion MX Developer
>Wyle Laboratories, Inc. | Web Developer



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