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Answers and rating deltas for
sql concatenate columns if one or more columns is not null
| Author | Votes | Δ |
|---|---|---|
| Michał Turczyn | 1 | +0.94 |
| jose_bacoy | 1 | +0.84 |
| Gordon Linoff | 0 | -1.32 |
| Ankush Sankhyan | 0 | -1.84 |
| baroale | 0 | -1.85 |
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