GATE | GATE CS 2011 | Question 46

Database table by name Loan_Records is given below.

Borrower    Bank_Manager   Loan_Amount
 Ramesh      Sunderajan     10000.00
 Suresh      Ramgopal       5000.00
 Mahesh      Sunderajan     7000.00

What is the output of the following SQL query?

SELECT Count(*) 
FROM  ( ( SELECT Borrower, Bank_Manager 
          FROM Loan_Records) AS S 
          NATURAL JOIN ( SELECT Bank_Manager, Loan_Amount 
                         FROM Loan_Records) AS T );

(A) 3
(B) 9
(C) 5
(D) 6

Answer: (C)
Explanation:

See Question 3 of https://www.geeksforgeeks.org/database-management-systems-set-4/amp/

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