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Database Systems: Design, Implemen...

11th Edition
Steven + 8 others
ISBN: 9781285196145

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BuyFindarrow_forward

Database Systems: Design, Implemen...

11th Edition
Steven + 8 others
ISBN: 9781285196145
Textbook Problem

In a SELECT query, what is the difference between a WHERE clause and a HAVING clause?

Program Plan Intro

SELECT statement:

It is used to retrieve information from the table or database. The syntax for the “SELECT” statement is given below:

SELECT * FROM table_Name;

Program Explanation

Difference between “WHERE” and “HAVING” clause:

“WHERE” clause “HAVING” clause
“WHERE” clause is used limit the number of rows. “HAVING” clause is used limit groups.
“WHERE” clause cannot be used with aggregate functions. “HAVING” clause in used to overcome “WHERE” clause because, “HAVING” clause uses aggregate functions.

Syntax:

SELECT column_Name(s) FROM table_Name WHERE condition;

Syntax:

SELECT column_Name(s) FROM table_Name GROUP BY column_Name HAVING condition;

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