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 aggregate …

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 (), AVG (), MAX …

The GROUP BY clause groups the rows into groups based on the values of one or more columns. Use an aggregate function with the GROUP BY clause to calculate the summarized value for each group.

Apr 18, 2024 · GROUP BY is a clause in SQL that arranges data with the same values into groups. Grouping is done by column (s), where all the rows with the same value in that column belong to one …

A beginner-friendly guide that explains SQL GROUP BY using clear examples, diagrams, and easy-to-understand queries.

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 returns one row per …

Dec 4, 2024 · That is, you need to aggregate the amount spent, grouped by different customer segments. This tutorial covers the SQL GROUP BY statement, as well as the HAVING statement …

Aug 21, 2025 · GROUP BY groups rows with the same value. Combine with COUNT, SUM, AVG, MIN, MAX to summarize data. Use HAVING to filter groups after aggregation. Perfect for totals, averages, …

Jul 27, 2025 · It is used primarily with aggregate functions such as COUNT (), SUM (), AVG (), MAX (), and MIN (), where results are structured at the group level instead of the row-level detail. The Group …

Oct 1, 2025 · The GROUP BY Clause is among the most used statements in SQL, as it allows the user to group rows that have the same values in the specified columns. It’s often used in conjunction with …