SQL Exercise: Arrange the orders according to the order date
SQL Formatting Output: Exercise-4 with Solution
From the following table, write a SQL query to find all the orders. Sort the result-set in descending order by ord_date. Return all fields.
Sample table: orders
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:
-- This query selects all columns from the 'orders' table and orders the result set by the 'ord_date' column in descending order.
SELECT *
-- Specifies the table from which to retrieve the data (in this case, 'orders').
FROM orders
-- Orders the result set by the 'ord_date' column in descending order.
ORDER BY ord_date DESC;
Output of the Query:
ord_no purch_amt ord_date customer_id salesman_id 70010 1983.43 2012-10-10 3004 5006 70003 2480.40 2012-10-10 3009 5003 70002 65.26 2012-10-05 3002 5001 70001 150.50 2012-10-05 3005 5002 70009 270.65 2012-09-10 3001 5005 70008 5760.00 2012-09-10 3002 5001 70007 948.50 2012-09-10 3005 5002 70011 75.29 2012-08-17 3003 5007 70004 110.50 2012-08-17 3009 5003 70005 2400.60 2012-07-27 3007 5001 70012 250.45 2012-06-27 3008 5002 70013 3045.60 2012-04-25 3002 5001
Code Explanation:
The said SQL query retrieves all columns from the 'orders' table and returns the result sorted in descending order based on the "ord_date" column. The "ORDER BY ord_date DESC" clause sorts the rows in the result set based on the values in the ord_date column in descending order.
Relational Algebra Expression:
Relational Algebra Tree:
Explanation :
Visual presentation :
Practice Online
Query Visualization:
Duration:
Rows:
Cost:
Have another way to solve this solution? Contribute your code (and comments) through Disqus.
Previous SQL Exercise: Display orders after sorting orders by order number.
Next SQL Exercise: Oldest orders first on the highest purchase amount.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
It will be nice if you may share this link in any developer community or anywhere else, from where other developers may find this content. Thanks.
https://www.w3resource.com/sql-exercises/sql-formatting-output-exercise-4.php
- Weekly Trends and Language Statistics
- Weekly Trends and Language Statistics