What is the purpose of Group by and Having clause

1.	What is the purpose of Group by and Having clause
Answer» ong>Answer: The GROUP BY Clause is USED together with the SQL SELECT statement. The SELECT statement used in the GROUP BY clause can only be used contain column names, aggregate functions, constants and expressions. The HAVING clause is used to restrict the results RETURNED by the GROUP BY clause.

Answer»

ong>Answer:

The GROUP BY Clause is USED together with the SQL SELECT statement. The SELECT statement used in the GROUP BY clause can only be used contain column names, aggregate functions, constants and expressions. The HAVING clause is used to restrict the results RETURNED by the GROUP BY clause.

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What is the purpose of Group by and Having clause

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