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Answers and rating deltas for
Oracle SQL: How to summary value if the value of other attribut is null and summary when is is not v
| Author | Votes | Δ |
|---|---|---|
| MT0 | 2 | +1.57 |
| Tom H | 0 | -1.04 |
| Radim Bača | 0 | -0.54 |
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