Group functions can be used in the where clause. State True or False.Select one:a.FALSEb.TRUE
Question
Group functions can be used in the where clause. State True or False.
Select one:
- a. FALSE
- b. TRUE
Solution
The correct answer is: a. FALSE
Explanation:
-
Understanding Group Functions: Group functions (or aggregate functions) such as
SUM()
,COUNT()
,AVG()
, etc., are designed to operate on groups of rows and return a single value for each group. -
Usage in WHERE Clause: The
WHERE
clause is used to filter records before any grouping occurs. Therefore, group functions cannot be used directly in theWHERE
clause because at that stage, the data has not yet been grouped. -
Correct Clause for Group Functions: Instead, group functions can be used in the
HAVING
clause, which is applied after the groupings have been established.
Hence, the statement that group functions can be used in the WHERE
clause is FALSE.
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