1.

Consider a database name interveiwmania whose attributes are internid (primary key), subject, subjectvalue.
Internid = {1, 2, 3, 4, 5, 6}
Subject = {sql, oop, sql, oop, c, c++}
Subjectvalue = {0, 0, 1, 1, 2, 2, 3, 3}
If these are one to one relation then what will be the output of the following query?
SELECT internid
FROM interveiwmania
WHERE subject IN (SELECT subject FROM interveiwmania WHERE subjectvalue = 3);

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


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