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In the above teaches relation ” Select * from teaches where Year = ‘2010’” displays how many rows?

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in Database Management by (119k points)
In the above teaches relation ” Select * from teaches where Year = ‘2010’” displays how many rows?

(a) 2

(b) 4

(c) 5

(d) 1

I 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

1 Answer

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Best answer
Right choice is (a) 2

Explanation: There are two tuples with the year is 2009.

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