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Answers and rating deltas for
SQL: how to enforce that only a single column is set in a group of columns
| Author | Votes | Δ |
|---|---|---|
| Alex Martelli | 10 | +1.43 |
| tvanfosson | 6 | +0.53 |
| no_one | 1 | -0.46 |
| John Saunders | 1 | -0.23 |
| Curt J. Sampson | 0 | -1.57 |
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