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In SQL Server, if I have a UNIQUE constraint on multiple fields, do I need an index on one of those
| Author | Votes | Δ |
|---|---|---|
| S.Karras | 4 | +4.68 |
| Damien_The_Unbeliever | 3 | +0.39 |
| sniperd | 0 | -0.85 |
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