Purpose

Specifies conditions for groups of rows (for example, display only the departments that have salaries totaling more than $200,000). This clause is valid only if you have already defined a Group By clause.

Syntax

HAVING expr1 rel_operator expr2

where:

expr1 | expr2
can be column names, constant values, or expressions. These expressions do not have to match a column expression in the Select clause. See "SQL expressions" for details regarding SQL expressions.
rel_operator
is the relational operator that links the two expressions.

Example

The following example returns only the departments that have salaries totaling more than $200,000:

SELECT DEPT_ID, sum(SALARY) FROM EMP GROUP BY DEPT_ID HAVING sum(SALARY) > 200000

See also