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Answers and rating deltas for
How to join two columns from same table and format the new Column in SQL
| Author | Votes | Δ |
|---|---|---|
| Lukasz Szozda | 2 | +0.31 |
| hardikpatel | 2 | -0.74 |
| Sayed Muhammad Idrees | 0 | -0.85 |
| Jtpbabyy | 0 | -0.92 |
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