The GROUP BY statement groups rows that have the same values into summary rows, like "find the number of customers in each country". The GROUP BY statement is often used with …

This tutorial introduces you SQL GROUP BY that combines rows into groups and apply aggregate function such as AVG, SUM, COUNT, MIN, MAX to each group.

Aug 20, 2020 · Data grouping—or data aggregation—is an important concept in the world of databases. In this article, we’ll demonstrate how you can use the GROUP BY clause in …

Nov 17, 2025 · The SQL GROUP BY clause is used to arrange identical data into groups based on one or more columns. It is commonly used with aggregate functions like COUNT (), SUM (), …

Nov 18, 2025 · A SELECT statement clause that divides the query result into groups of rows, usually by performing one or more aggregations on each group. The SELECT statement …

Dec 4, 2024 · This tutorial covers the SQL GROUP BY statement, as well as the HAVING statement that helps you control which rows of data are included in each group. HAVING is …

Typically, grouping is used to apply some sort of aggregate function for each group. [1][2] The result of a query using a GROUP BY clause contains one row for each group. This implies …