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Which operators test whether a subquery returns any rows?

Which operators test whether a subquery returns any rows? Correct Answer EXISTS and NOT EXISTS

The operators ‘EXISTS’ and ‘NOT EXISTS’ operators only test whether a subquery returns any rows. If it returns a row, ‘EXISTS’ results into true and ‘NOT EXISTS’ results into false.

Related Questions

In a survey of 100 students, it was found that 25 students have enrolled for Navy AA test series, 26 students have enrolled for NDA test series, 26 students have enrolled for Airforce group X test series, 9 students have enrolled for both Navy AA and Airforce group X test series, 11 students have enrolled for both Navy AA and NDA test series, 8 students have enrolled for both NDA and Airforce group X test series whereas 3 students have enrolled in all three test series. Find the number of students who has not enrolled in any of the test series.
In a survey of 100 students, it was found that 25 students have enrolled for Navy AA test series, 26 students have enrolled for NDA test series, 26 students have enrolled for Airforce group X test series, 9 students have enrolled for both Navy AA and Airforce group X test series, 11 students have enrolled for both Navy AA and NDA test series, 8 students have enrolled for both NDA and Airforce group X test series whereas 3 students have enrolled in all three test series. Find the number of students who have enrolled exactly in any two test series.
Which operators are used when a subquery returns multiple rows to be evaluated in comparison to the outer query?
The operators used when a subquery returns multiple rows to be evaluated in comparison to the outer query are _____________
The operators that are used when a subquery returns multiple rows to be evaluated in comparison to the outer query are _____________
The operators used when a subquery returns multiple rows to be evaluated in comparison to the outer query are . . . . . . . .
The operators that are used when a subquery returns multiple rows to be evaluated in comparison to the outer query are . . . . . . . .
You are the administrator of eight SQL Server 2000 computers. You configure alerts on each server so that various problem conditions will be reported if they occur.You create 20 operators on one of the servers. You configure these operators by using the e-mail and pager contact information for the employees in your department. You configure the alerts on the server to send e-mail messages and pager messages to the appropriate operators.You need to configure the same 20 operators on the other seven servers. You want to do this with a minimum amount of administrative time.What should you do?
In a survey of 100 students, it was found that 25 students have enrolled for Navy AA test series, 26 students have enrolled for NDA test series, 26 students have enrolled for Airforce group X test series, 9 students have enrolled for both Navy AA and Airforce group X test series, 11 students have enrolled for both Navy AA and NDA test series, 8 students have enrolled for both NDA and Airforce group X test series whereas 3 students have enrolled in all three test series. Find the number of students who have enrolled in exactly one test series.
Article 74(2) the question whether any, and if so what, advice was tendered by Ministers to the President shall not be inquired into in any court.
In the light of article 74(2) and decided cases, test the correctness of the following statements:
Statement 1. The Courts are justified in probing as to whether there was any material on the basis of which the advice was given, and whether it was relevant for such advice and the President could have acted on it.
Statement 2. When the Courts undertake an enquiry into the existence of such material, the prohibition contained in article 74(2) does not negate their right to know about the factual existence of any such material.