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Answers and rating deltas for
How do I write a SQL query to detect duplicate primary keys?
| Author | Votes | Δ |
|---|---|---|
| casperOne | 6 | +1.10 |
| Zalaboza | 1 | +1.59 |
| Mike Sherrill 'Cat Recall' | 0 | -0.68 |
| Neil | 0 | -0.62 |
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