1.

In the above teaches relation ” Select * from teaches where Year = ‘2010’” displays how many rows?(a) 2(b) 4(c) 5(d) 1I have been asked this question during an internship interview.I want to ask this question from Reduction to Relational Schemas in division Database Systems Design and Implementation of Database Management

Answer» RIGHT choice is (a) 2

Explanation: There are TWO TUPLES with the YEAR is 2009.


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