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Question:
Consider attributes ID , CITY and NAME . Which one of this can be considered as a super key?
a)
NAME
b)
ID
c)
CITY
d)
CITY , ID
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Description:

Here the id is the only attribute which can be taken as a key. Other attributes are not uniquely identified.

This question was added in the model test of DB key and ER diagram

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Coaching/Teacher: Prodeep Roy
Syllabus: No Syllabus
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