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Answers and rating deltas for
How do I prevent duplicate entries in a database when inserting new entries with SQL?
| Author | Votes | Δ |
|---|---|---|
| GMB | 0 | -0.45 |
| user11982798 | 0 | +0.63 |
| user11982798 | 0 | +0.63 |
| Mary | 0 | +0.30 |
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