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Answers and rating deltas for
How to select the first two row of each group and count difference between them in one column?
| Author | Votes | Δ |
|---|---|---|
| irene | 1 | -0.08 |
| Majlena | 1 | +0.07 |
| Vignesh Kumar A | 1 | +0.00 |
Last visited: Sep 30, 2016, 2:18:21 AM