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Answers and rating deltas for
Mysql -- Use a secondary subquery if and only if the first subquery returned empty
| Author | Votes | Δ |
|---|---|---|
| Thomas | 3 | +0.94 |
| John Petrak | 2 | +1.70 |
| Mahesh | 1 | +0.11 |
| onedaywhen | 0 | -1.21 |
Last visited: Sep 14, 2014, 5:07:29 AM