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What is the difference between Single row sub-Query and Scalar Sub-Query?

April 26, 2017difference row Scalar sub-query

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What is the difference between Single row sub-Query and Scalar Sub-Query?

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SINGLE ROW SUBQUERY RETURNS A VALUE WHICH IS USED BY WHERE CLAUSE, WHEREAS SCALAR SUBQUERY IS A SELECT STATEMENT USED IN COLUMN LIST CAN BE THOUGHT OF AS AN INLINE FUNCTION IN SELECT COLUMN LIST.