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Answers and rating deltas for
How to set a unique constraint on 2 columns - one column being mapped to distinct values of another
| Author | Votes | Δ |
|---|---|---|
| Gordon Linoff | 1 | +0.36 |
| Raghu | -1 | -2.90 |
Last visited: Apr 28, 2015, 7:28:49 PM