1.

Consider a database name interviewmania whose attributes are intern_id (primary key), subject.
Internid = {1, 2, 3, 4, 5, 6}
Subject = {sql, oop, sql, oop, c, c++}
If these are one to one relation then what will be the output of the following query?
SELECT internid
FROM interviewmania
WHERE subject IN (c, c++, oop);

A. {2, 4, 5, 6}
B. {3, 4}
C. {1, 2, 3}
D. {5, 6}
E. None of these
Answer» B. {3, 4}


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