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CBSE Class 12 Informatics Practices Question 2 of 81

MySQL Functions — Question 2

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Question

Question 2

Assertion. Multi-row functions when applied on a column in a table, yield values which are not equal to number of rows in the table.

Reason. Multiple-rows functions do not work with all the rows in the table.

  1. Both A and R are true and R is the correct explanation of A.
  2. Both A and R are true but R is not the correct explanation of A.
  3. A is true but R is false.
  4. A is false but R is true.
Answer

A is true but R is false.

Explanation
Multiple row functions when applied on a column in a table, work on multiple rows together and return a summary result for a group of rows. Hence, the result values are not equal to number of rows in the table.