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QWhich one of the following attribute can be taken as a primary key?

ID: #2620 Keys in DBMS MCQ 18,734 views
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#2620Q ID
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Keys in DBMS MCQTopic

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  • A Name ✔ ✖
  • B Street ✔ ✖
  • C Id ✔ ✖
  • D Department ✔ ✖
Correct Answer

Explanation

The attributes name, street, and department can repeat for some tuples. But the id attribute has to be unique.So it forms a primary key.
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