The Entity Customer has three candidate keys: a) CustId b) Email and c) ContactNo. Suggest the best primary key for this entity. - Study24x7
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 The Entity Customer has three candidate keys: a) CustId b) Email and c) ContactNo. Suggest the best primary key for this entity.

A

CustId

B

 Email

C

ContactNo

D

 CustId and ContactNo

Databases IIT-JEE B.SC/IT
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