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Answers and rating deltas for
How can I create a value from two other values in the same table in my SQL?
| Author | Votes | Δ |
|---|---|---|
| Ionic | 1 | +4.01 |
| Eborbob | 0 | -1.36 |
| Kiran Dash | 0 | -1.36 |
| jj-aa | 0 | -1.29 |
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