select query across multiple tables

["Cole S. Ashcraft" <cashcraft@xxxxxxxxxxxxxxxxxx>]

I'm trying to pull all the records from the table class where classID is 
not equal to the value of classID in the table assignment.

Currently, I have 'select class.classID, class.classDesc from class, 
assignment where assignment.classID >= class.classID and 
assignment.assignmentID=$assidn'. $assidn is value of 
assignment.assignmentID.

When I do this query, I am missing a good chunk of records. What am I 
doing wrong?

Cole


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