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Answers and rating deltas for
Finding each record having second largest date for each `key' column in mysql?
| Author | Votes | Δ |
|---|---|---|
| Yogesh Sharma | 2 | +1.01 |
| Vishnu Kunchur | 1 | +1.51 |
| Salman A | 0 | -0.87 |
| Error_2646 | 0 | -2.60 |
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