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1 July, 14:10

Which key retains its uniqueness even after you remove some of the fields?

The___ retains its uniqueness even after you remove some of the fields.

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  1. 1 July, 15:39
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    The Unique constraint/key.

    Unique constraints or keys can be used to retain the uniqueness of combinations of fields replaced as a primary key with a generated ID. They enable you enforce 1 - 1 relationship. There may be one Primary Key for one table and many unique key constraints for one table.
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