Employee table( NID, Company_ID, Name, Mobile Number). Assume every record has a unique Mobile number. Find the number of super key, candidate key…
Employee table( NID, Company_ID, Name, Mobile Number). Assume every record has a unique Mobile number. Find the number of super key, candidate key. And give example of two candidate key.
From the PGCB Assistant Engineer (CSE) May 2024 – Written (BUET) exam, question 8 of 19.
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