programming-examples/sql/Joins/Write a SQL statement to make a cartesian product between salesman and customer i.e. each salesman will appear for all customer and vice versa for those salesmen who belongs.sql

/*Write a SQL statement to make a cartesian product between salesman and customer i.e. each salesman will appear for all 
customer and vice versa for those salesmen who belongs to a city and the customers who must have a grade.*/
SELECT *   
FROM salesman a   
CROSS JOIN  customer b   
WHERE a.city IS NOT NULL   
AND b.grade IS NOT NULL;