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Answers and rating deltas for
Query Optimization : using (Union instead of OR) and (exists instead of null)
| Author | Votes | Δ |
|---|---|---|
| ch2019 | 1 | +2.27 |
| Dwight Reynoldson | 1 | +1.98 |
| ScaisEdge | 0 | -0.53 |
Last visited: Sep 4, 2019, 3:46:46 PM