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Answers and rating deltas for
Oracle Sql: how to substract rows from one table from another only once
| Author | Votes | Δ |
|---|---|---|
| ruakh | 1 | +0.31 |
| Michael Durrant | 1 | +0.97 |
| Dawood ibn Kareem | 0 | -0.83 |
| GregHNZ | -1 | -3.61 |
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