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RE: SQL Beginner's Tutorial: JOIN Me and Together We Will Rule the Universe
I hadn't thought of equating to the IN statement. That's a good idea.
I hadn't thought of equating to the IN statement. That's a good idea.
Moreover, it's a bit strange that you teach ppl outer joins without them knowing what NULL is.
I did skip that and I'll be trying to tie that in on the next lesson... I know it's a bit of backtracking, but I didn't think of it until it came up in these comments.