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Unique Index vs Primary Key

2649819Sep 18 2014 — edited Sep 19 2014

Hi all,

Could you please help me to understand how Unique index and Primary key impacts perfomance?

If a table already has unique index on it, then creating Primary key on that table would help in perfomance improvement?

Thanks

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Locked on Oct 17 2014
Added on Sep 18 2014
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