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Answers and rating deltas for
Why use multiple columns as primary keys (composite primary key)
| Author | Votes | Δ |
|---|---|---|
| MJB | 30 | +4.62 |
| John Hartsock | 8 | +1.44 |
| Robert Paulson | 3 | -0.24 |
| ig0774 | 1 | -4.17 |
| nvogel | 1 | 0.00 |
| HLGEM | 0 | 0.00 |
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