The HAVING clause places the condition in the groups defined by the GROUP BY clause in the SELECT statement.

This SQL clause is implemented after the ‘GROUP BY’ clause in the ‘SELECT’ statement.

This clause is used in SQL because we cannot use the WHERE clause with the SQL aggregate functions. Both WHERE and HAVING clauses are used for filtering the records in SQL queries.

When filtering groups based on a predetermined list of criteria, the HAVING clause is frequently used in conjunction with the GROUP BY clause. The HAVING clause syntax is demonstrated by the following:

SELECT

select_list

FROM

table_name

GROUP BY

group_list

HAVING conditions;

SQL (Structured Query Language) is a programming language.

The GROUP BY phrase in this syntax groups the rows into different categories, and the HAVING clause then applies one or more criteria to each category.

The outcome is limited to groups that cause the conditions to evaluate to TRUE.

To put it another way, the groups that the condition evaluates to FALSE or UNKNOWN are excluded.