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Answers and rating deltas for
how can i do the following query with Oracle SQL?
| Author | Votes | Δ |
|---|---|---|
| a_horse_with_no_name | 4 | +0.40 |
| hemalp108 | 0 | +1.17 |
| Goran Stefanović | 0 | +1.45 |
| Madhivanan | -1 | -0.42 |
| raj.ini | -1 | -2.51 |
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