SQL Exercises: Display customer name, city and grade by highest grade

SQL Formatting Output: Exercise-8 with Solution

From the following table, write a SQL query to find all the customers. Sort the result-set in descending order on 3rd field. Return customer name, city and grade.

Sample table: customer

Sample Solution:

SELECT cust_name,city,grade 
FROM customer 
ORDER BY 3 DESC;

Output of the Query:

cust_name	city		grade
Brad Guzan	London	
Fabian Johnson	Paris		300
Julian Green	London		300
Brad Davis	New York	200
Jozy Altidor	Moscow		200
Graham Zusi	California	200
Nick Rimando	New York	100
Geoff Cameron	Berlin		100

Relational Algebra Expression:

Relational Algebra Tree:

Explanation:

Pictorial presentation :

Practice Online

Query Visualization:

Duration:

Rows:

Cost:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: From the following table, write a SQL query to calculate the maximum purchase amount generated by each sales person for every order date. Sort the result-set by sales person id and order date in ascending order. Return sales person id, order date and maximum purchase amount.
Next: From the following table, write a SQL query to count the unique orders, highest purchase amount for each customer. Sort the result-set in descending order on 2nd field. Return customer ID, number of distinct orders and highest purchase amount by each customer.