What is "Having" clause for?

Abuobyda Abdalla , the `HAVING` clause in SQL is used to filter query results based on aggregate functions. (source: https://www.geeksforgeeks.org/sql-having-clause-with-examples/) this topic is also covered by the following sololearn sources: tutorial: introduction to sql modul: query techniques lesson: grouping and filtering