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Which of the following is a correlated subquery?(a) Uses the result of an inner query to determine the processing of an outer query(b) Uses the result of an outer query to determine the processing of an inner query(c) Uses the result of an inner query to determine the processing of an inner query(d) Uses the result of an outer query to determine the processing of an outer queryThe question was posed to me in final exam.I would like to ask this question from Joins in portion Laying the Foundation of SQL Server

Answer»

The correct choice is (a) Uses the result of an inner QUERY to determine the processing of an outer query

For explanation: A ‘CORRELATED subquery’ is a term USED for SPECIFIC types of queries in SQL in computer databases. It is a subquery (a query nested inside another query) that uses values from the outer query in its WHERE clause.



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