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CBSE Class 11 Informatics Practices Question 87 of 87

Structured Query Language (SQL) — Question 11

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Question

Question 11

All primary keys are candidate keys but all candidate keys are not primary keys.

Answer

True

Reason — A primary key is a candidate key chosen to uniquely identify rows in a table. All primary keys are candidate keys, but not all candidate keys become primary keys, as only one is selected for that role.