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Unique Index vs. Unique Constraint

748490Feb 18 2010 — edited Feb 18 2010
Hi All,

I'm studying for the Oracle SQL Expert Certification. At one point in the book, while talking about indices, the author says that a unique index is not the same a unique constraint. However, he doesn't explain why they're two different things.

Could anyone clarify the difference between the two, please?

Thanks a lot,

Valerio
This post has been answered by Boneist on Feb 18 2010
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Locked on Mar 18 2010
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