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Answers and rating deltas for
How to perform vertical addition of column for each two rows in SQL?
| Author | Votes | Δ |
|---|---|---|
| a_horse_with_no_name | 4 | +0.30 |
| H. Hess | 0 | +0.68 |
| Dharmesh Porwal | -2 | -3.06 |
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