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Answers and rating deltas for
How to create SQL constraint on primary key to make sure it could only be referenced once?
| Author | Votes | Δ |
|---|---|---|
| Andy | 2 | +0.54 |
| rd_nielsen | 1 | +1.56 |
| i-man | 0 | -2.88 |
| aschoerk | 0 | -2.98 |
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