Q. What is a candidate key?

उम्मीदवार कुंजी क्या है?

A
A primary key that allows null values
B
A minimal super key
C
A key used for encryption
D
A composite key

Explanation

Explanation will be available soon. Please stay tuned.

व्याख्या जल्द ही उपलब्ध होगी। कृपया बने रहें।

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