The GROUP BY clause is used to group records in a database table. This is often used in conjunction with an aggregatfunction such as SUM or COUNT. The HAVING clause is used to filter groups based on a specified condition.The GROUP BY clause is used in a SELECT statement to group together rows that have the same values in certain columns. The HAVING clause is used to filter groups based on a condition. For example you could use the GROUP BY clause to group together all rows with thesame value in the "last_name" column. Then you could use the HAVING clause to only display groups where there aremore than five people with the same last name.SQL GROUP BY and HAVING clause are used together to filter the result of a query. The GROUP BY clause is used to group the rows of data based on one or more columns while the HAVING clause is used to specify which groups should be included in the final results. For example if you want to find the average salary of employees in each department you would use the GROUP BY clause to group the data by department and then use the HAVING clause to specify which departments should be included in the final results.The GROUP BY clause is used in conjunction with the aggregate functions to group the result-set by one or more columns. The HAVING clause is used to filter groups based on a specified condition.SQL GROUP BY and HAVING clause are two important concepts in SQL. GROUP BY is used to group together rows with the same values while HAVING is used to filter those groups based on certain conditions. For example if you want to find the average salary of all employees in each department you would use GROUP BY department_id If you only want to include departments that have more than 10 employees you would use HAVING COUNT(employee_id)>10