The SQL HAVING Clause. The HAVING clause was added to SQL because the WHERE keyword cannot be used with aggregate functions. HAVING Syntax

Jan 30, 2025 · The HAVING clause in SQL is used to filter query results based on aggregate functions. Unlike the WHERE clause, which filters individual rows before grouping, the HAVING clause filters groups of data after aggregation. It is commonly used with functions like SUM(), AVG(), COUNT(), MAX(), and MIN().

To specify a condition for filtering groups, you use a HAVING clause. If you use a HAVING clause without a GROUP BY clause, the HAVING clause behaves like a WHERE clause. Here’s the syntax of the HAVING clause: Note that the HAVING clause appears immediately after the GROUP BY clause.

Nov 22, 2024 · Specifies a search condition for a group or an aggregate. HAVING can be used only with the SELECT statement. HAVING is typically used with a GROUP BY clause. When GROUP BY is not used, there is an implicit single, aggregated group. Transact-SQL syntax conventions. Syntax [ HAVING <search condition> ] Arguments

HAVING. The HAVING command is used instead of WHERE with aggregate functions. The following SQL lists the number of customers in each country. Only include countries with more than 5 customers:

Jul 31, 2020 · What Is the SQL HAVING Clause? In SQL, the HAVING clause: Filters data based on defined criteria. Is commonly used in creating reports. Is only used in SELECT. Works with GROUP BY. If you know the GROUP BY clause, you know that it is used to aggregate values: it puts records into groups to calculate aggregation values (statistics) for them ...

Summary: in this tutorial, you will learn how to use the SQL Server HAVING clause to filter the groups based on specified conditions. The HAVING clause is often used with the GROUP BY clause to filter groups based on a specified list of conditions. The following illustrates the HAVING clause syntax: select_list. FROM . table_name. GROUP BY .

Feb 15, 2024 · In SQL, the HAVING clause is useful for refining query results by filtering data groups based on specific conditions. In this article, we'll go over some beginner-friendly exercises with the HAVING clause to get you started; for a more in-depth explanation, see our article The SQL HAVING Clause Explained.

Apr 30, 2024 · SQL HAVING clause specifies a search condition for a group or an aggregate. HAVING is usually used in a GROUP BY clause, but even if you are not using GROUP BY clause, you can use HAVING to function like a WHERE clause. You must use HAVING with SQL SELECT. Syntax: [ORDER BY {order_expression [ASC | …

Sep 6, 2024 · In this comprehensive 3,000+ word guide, we’ll unpack what HAVING does, when to use it, its syntax and functionality, common mistakes, performance considerations, and alternative approaches.