Which subquery returns a single value?(a) scalar(b) column(c) row(d) tableThis question was posed to me in unit test.My doubt stems from Performing Multiple in section Using SQL to Manage Data of MySQL

Which subquery returns a single value?(a) scalar(b) column(c) row(d) t

1.	Which subquery returns a single value?(a) scalar(b) column(c) row(d) tableThis question was posed to me in unit test.My doubt stems from Performing Multiple in section Using SQL to Manage Data of MySQL
Answer» The correct ANSWER is (a) SCALAR Explanation: The subqueries in MySQL can return different types of information. A scalar query returns a single VALUE. Column subquery return a single column and ROW subquery returns a single row.

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