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Db2 HAVING clause examples. We will use the books and publishers tables from the sample database to demonstrate the HAVING clause. 1) Using Db2 HAVING clause to filter groups example. This statement finds publishers that have more than 30 books:
The HAVING clause follows the GROUP BY clause and can contain the same kind of search condition as you can specify in a WHERE clause. In addition, you can specify aggregate functions in a HAVING clause. For example, suppose that you want to retrieve the average salary of women in each department.
25 sie 2020 · In this statement, GROUP BY clause is used to group the data by Customernumber so that the COUNT(*) function can return the number of orders placed by each customernumer. The HAVING clause filters the data so that only orders with two or more items is returned. Result:
The SQL HAVING Clause. The HAVING clause was added to SQL because the WHERE keyword cannot be used with aggregate functions. HAVING Syntax
17 paź 2024 · The HAVING clause was introduced in SQL to allow the filtering of query results based on aggregate functions and groupings, which cannot be achieved using the WHERE clause that is used to filter individual rows.
You can use the HAVING clause to place conditions on the GROUP BY column values as well as on calculated values. This example returns cust_code and customer_num, call_dtime, and groups them by call_code for all calls that have been received from customers with customer_num less than 120:
The HAVING clause specifies a result table that consists of those groups of the intermediate result table for which the search-condition is true. The intermediate result table is the result of the previous clause.
