SQLite Exercise: Get the average salary and number of employees in the employees table

Write a query to get the average salary and number of employees in the employees table.

Sample table : employees

SQLite Code :

SELECT AVG(salary), COUNT(*) 
FROM employees;

Output:

AVG(salary)       COUNT(*)
----------------  ----------
6461.68224299065  107

Relational Algebra Expression:

Relational Algebra Tree:

Practice SQLite Online

Model Database

Structure of 'hr' database :

Improve this sample solution and post your code through Disqus.

Previous: Write a query to get the maximum and minimum salary from employees table.
Next: Write a query to get the number of employees working with the company.