SQL Exercises: Highest purchase amount on a date for each salesman

SQL Aggregate Functions: Exercise-11 with Solution

From the following table, write a SQL query to determine the highest purchase amount made by each salesperson on '2012-08-17'. Return salesperson ID, purchase amount.

Sample table: orders

Sample Solution :

SELECT salesman_id,MAX(purch_amt) 
FROM orders 
WHERE ord_date = '2012-08-17' 
GROUP BY salesman_id;

Output of the Query:

salesman_id	max
5003		110.50
5007		75.29

Code Explanation:

The said SQL query retrieves the salesman id and the maximum purchase amount for orders that have an order date of '2012-08-17' in the 'orders' table. The result will be grouped by salesman id, and only the maximum purchase amount will be returned for each group.

Relational Algebra Expression:

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Explanation:

Visual presentation :

Practice Online

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