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Which of the following is true of an index used to...
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Which of the following is true of an index used to support a UNIQUE constraint?（）

发布日期：2020-04-10

A.It must have the UNIQUE attribute.

B.It cannot be created explicitly by the user.

C.It must have the UNIQUE and CLUSTER attributes.

D.It must have the UNIQUE WHERE NOT NULL attribute.

标签： true index support unique constraint
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