Created
October 3, 2017 22:01
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Relational Algebra Division
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| group: division | |
| R = { a:string, b:number | |
| a, 1 | |
| a, 2 | |
| a, 3 | |
| b, 2 | |
| b, 3 | |
| c, 1 | |
| } | |
| S = { b:number | |
| 1 | |
| 2 | |
| } |
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