SQL Subquery Exercises: Display the salesmen which name are alphabetically lower than the name of the customers

SQL SUBQUERY: Exercise-21 with Solution

21. From the following tables write a SQL query to find all those salespeople whose names appear alphabetically lower than the customer’s name. Return salesman_id, name, city, commission.

Sample table: Salesman

Sample table: Customer

Sample Solution:

SELECT *
FROM salesman a
WHERE EXISTS
   (SELECT *
	FROM CUSTOMER b
	WHERE  a.name  < b.cust_name);

Output of the Query:

salesman_id	name		city		commission
5001		James Hoog	New York	0.15
5002		Nail Knite	Paris		0.13
5006		Mc Lyon		Paris		0.14
5003		Lauson Hen	San Jose	0.12

Explanation:

Practice Online

Query Visualization:

Duration:

Rows:

Cost:

Contribute your code and comments through Disqus.

Previous: From the following tables, write a SQL query to find the salespeople whose place of living (city) matches with any of the city where customers live. Return salesman_id, name, city and commission.
Next: From the following table, write a SQL query to find all those customers who have a greater grade than any customer who belongs to the alphabetically lower than the city of New York. Return customer_id, cust_name, city, grade, salesman_id