Answer Posted / Rohit Kumar Chaudhary
The SQL functions `HAVING`, `GROUP BY`, and `GROUP` are used together to filter and group data in a query. Here's an example:n```sqlnSELECT department, COUNT(employee_id) AS total_employeesnFROM employeesnGROUP BY departmentnHAVING total_employees > 50;n``` In this example, the `GROUP BY` clause groups the data by department, and the `HAVING` clause filters the groups that have more than 50 employees.
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