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where can I find a good example/explanation about Division Operation in Relational Algebra?

Author Votes Δ
Arnkrishn 2 +4.80
Eat at Joes 0 0.00
Alex Martelli 0 -0.49
Cade Roux 0 -0.11
Last visited: Sep 14, 2014, 5:07:29 AM