database design

  • what is candidatekey in database

    Thanks
    Dastagiri.D

  • Definition: A candidate key is a combination of attributes that can be uniquely used to identify a database record without any extraneous data. Each table may have one or more candidate keys. One of these candidate keys is selected as the table primary key.

    How to use Candidate keys:

    http://support.microsoft.com/kb/127846

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