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Which statement describes the effect on an index, when the indexed column for the rows is updatedin the base table()

发布日期:2020-04-10

Which statement describes the effect on an index, ...
A

An update in a leaf row takes place.

B

The index becomes invalid after the update.

C

The leaf block containing the row to be updated is marked as invalid.

D

A row in the leaf block of the index for the key value is logically deleted and a new leaf row is inserted

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