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Answers and rating deltas for
Under what conditions does ROWNUM=1 significantly increase performance in an "exists" s...
| Author | Votes | Δ |
|---|---|---|
| Michal Pravda | 6 | +4.00 |
| akf | 5 | +0.81 |
| Brian | 2 | +0.14 |
| djb | 1 | 0.00 |
| Jeffrey Kemp | 0 | -3.00 |
| WW. | 0 | -0.87 |
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