SQL Exercises: All orders with amounts greater than one on given date

SQL SUBQUERY: Exercise-23 with Solution

23. From the following table write a SQL query to find all those orders whose order amount exceeds at least one of the orders placed on September 10th 2012. Return ord_no, purch_amt, ord_date, customer_id and salesman_id.

ord_no      purch_amt   ord_date    customer_id  salesman_id
----------  ----------  ----------  -----------  -----------
70001       150.5       2012-10-05  3005         5002
70009       270.65      2012-09-10  3001         5005
70002       65.26       2012-10-05  3002         5001
70004       110.5       2012-08-17  3009         5003
70007       948.5       2012-09-10  3005         5002
70005       2400.6      2012-07-27  3007         5001
70008       5760        2012-09-10  3002         5001
70010       1983.43     2012-10-10  3004         5006
70003       2480.4      2012-10-10  3009         5003
70012       250.45      2012-06-27  3008         5002
70011       75.29       2012-08-17  3003         5007
70013       3045.6      2012-04-25  3002         5001

Sample Solution:

-- Selecting all columns from the 'Orders' table
SELECT *
-- Specifying the table to retrieve data from ('Orders')
FROM Orders
-- Filtering the results based on the condition that 'purch_amt' is greater than any value in the set of 'purch_amt' returned by a subquery
WHERE purch_amt > ANY
   -- Subquery: Selecting 'purch_amt' values from the 'orders' table where 'ord_date' is '2012/09/10'
   (SELECT purch_amt
	FROM orders
	WHERE  ord_date='2012/09/10');

Output of the Query:

ord_no	purch_amt	ord_date	customer_id	salesman_id
70005	2400.60		2012-07-27	3007			5001
70008	5760.00		2012-09-10	3002			5001
70010	1983.43		2012-10-10	3004			5006
70003	2480.40		2012-10-10	3009			5003
70013	3045.60		2012-04-25	3002			5001
70007	948.50		2012-09-10	3005			5002

Explanation:

The above SQL query is selecting all columns (*) from the table 'orders' where the "purch_amt" value of the row is greater than any of the "purch_amt" values in the subquery. The subquery is also selecting the "purch_amt" column from the 'orders' table, but only for rows where the "ord_date" value is equal to '2012/09/10'. The ANY keyword is used to check if there is any value in the subquery that the outer query's condition is true for.

Visual Explanation:

Practice Online

Sample Database: inventory

Query Visualization:

Duration:

Rows:

Cost:

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