What is "Having" clause for?

Question

and How I can use it in a query?

Answer 1

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

Answer 2

Thanks very much!