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SQL exercises

SQL Subquery Exercises: Find all the orders issued against the salesman who may works for customer whose id is 3007

SQL SUBQUERY : Exercise-3 with Solution

3. Write a query to find all the orders issued against the salesman who may works for customer whose id is 3007.

Sample table: Salesman


Sample table: Orders


Sample Solution:

SELECT *
FROM orders
WHERE salesman_id =
    (SELECT DISTINCT salesman_id 
     FROM orders 
     WHERE customer_id =3007);

Sample Output:

ord_no	purch_amt	ord_date	customer_id	salesman_id
70002	65.26		2012-10-05	3002		5001
70005	2400.60		2012-07-27	3007		5001
70008	5760.00		2012-09-10	3002		5001
70013	3045.60		2012-04-25	3002		5001

Explanation:

SQL Subqueries: Find all the orders issued against the salesman who may works for customer whose id is 3007.

Practice Online


Inventory database model

Query Visualization:

Duration:

Query visualization of Find all the orders issued against the salesman who may works for customer whose id is 3007 - Duration

Rows:

Query visualization of Find all the orders issued against the salesman who works for customer whose id is 3007 - Rows

Cost:

Query visualization of Find all the orders issued against the salesman who works for customer whose id is 3007 - Cost

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Next: Write a query to display all the orders which values are greater than the average order value for 10th October 2012.

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