- MySQL GROUP BY clause is used in collaboration with the SELECT statement to arrange identical data into groups.
- The GROUP BY clause follows the WHERE clause in a SELECT statement and precedes the ORDER BY clause.
The GROUP BY clause must follow the conditions in the WHERE clause and must proceed the ORDER BY clause if one is used.
SELECT column1, column2 FROM table_name WHERE [ conditions ] GROUP BY column1, column2 ORDER BY column1, column2;
select name, sum(salary) from customers group by name;