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In case of correlated subquery the outer query is executed once. The subquery is executed ............. for every row in the outer query.Select one:a.Twiceb.Thricec.Once

Question

In case of correlated subquery the outer query is executed once. The subquery is executed ............. for every row in the outer query.Select one:a.Twiceb.Thricec.Once

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Solution

The correct answer is:

The subquery is executed once for every row in the outer query. So, the answer is c. Once.

Similar Questions

Which of the following is a correlated subquery?Select one:a.Uses the result of an outer query to determine the processing of an outer queryb.Uses the result of an inner query to determine the processing of an outer queryc.Uses the result of an inner query to determine the processing of an inner queryd.Uses the result of an outer query to determine the processing of an inner query

Often, a correlated subquery looks like a nested loop join. Select one:TrueFalse

What is unique about a correlated subquery?1 pointA correlated subquery depends on input from the outer query to return values and always appear in the WHERE clause.A correlated subquery is independent of the outer query meaning they can be executed as a standalone query and always appear in the WHERE clause.A correlated subquery depends on input from the outer query to return values and always appear in the FROM clause.A correlated subquery is independent of the outer query meaning they can be executed as a standalone query and always appear in the FROM clause.

A subquery is evaluated . . . . . . for the entire parent statement. onceNone of the mentionedtwicethrice

What is a correlated sub-query?Select one:a.A sub-query that substitutes the names of the outer queryb.A sub-query that uses the correlation name of an outer queryc.A sub-query that does not depend on its outer query’s correlation namesd.An independent query that uses the correlation name of another independent query.

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