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Answers and rating deltas for
How can I construct my SQL query to select the two latest/most recent groups of records for each key
| Author | Votes | Δ |
|---|---|---|
| Gordon Linoff | 2 | +0.35 |
| Nitin Pal | 0 | -1.54 |
| PK20 | 0 | -1.28 |
Last visited: Jan 21, 2016, 8:52:43 PM