Specifies a search condition for a group or an aggregate.
- HAVING can be used only with the SELECT statement.
- HAVING is typically used in a GROUP BY clause. When GROUP BY is not used, HAVING behaves like a WHERE clause.
- Having Clause is basically used only with the GROUP BY function in a query.
- WHERE Clause is applied to each row before they are part of the GROUP BY function in a query.
- HAVING criteria is applied after the the grouping of rows has occurred.