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Answers and rating deltas for
Difficulty understanding this query oracle sql
| Author | Votes | Δ |
|---|---|---|
| Dmitry Bychenko | 3 | +1.98 |
| StanislavL | 1 | +0.61 |
| Devart | 0 | -1.23 |
| bvr | 0 | -1.36 |
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