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Answers and rating deltas for
how to get data of 3 columns into one using case statement in mysql
| Author | Votes | Δ |
|---|---|---|
| samjhana joshi | 2 | +3.84 |
| download dowload | 1 | +0.03 |
| rmp | 1 | -0.17 |
| Rahul | 0 | -0.46 |
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