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Answers and rating deltas for
how combine result from two tables and display in single column in sql
| Author | Votes | Δ |
|---|---|---|
| sandipon | 1 | +4.26 |
| Jens | 0 | -0.17 |
| varsha | 0 | -1.65 |
| Jacob Lambert | 0 | -1.26 |
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