Job_Fair_data_science | Question 7

Consider the following tables:

employees columns:

emp_id
emp_name
salary
dept_id

departments columns:

dept_id
dept_name

Write a SQL query to retrieve the average salary for each department.

(A)

SELECT dept_name, AVG(salary) FROM employees Cross JOIN departments ON employees.dept_id = departments.dept_id GROUP BY dept_name;

(B)

SELECT dept_name, AVG(salary) FROM employees GROUP BY dept_id;

(C)

SELECT dept_name, AVG(salary) FROM departments RIGHT JOIN employees ON departments.dept_id = employees.dept_id GROUP BY dept_name;

(D)

SELECT dept_name, AVG(salary) FROM departments LEFT JOIN employees ON departments.dept_id = employees.dept_id GROUP BY dept_name;

Answer

Please comment below if you find anything wrong in the above post
Feeling lost in the world of random DSA topics, wasting time without progress? It's time for a change! Join our DSA course, where we'll guide you on an exciting journey to master DSA efficiently and on schedule.
Ready to dive in? Explore our Free Demo Content and join our DSA course, trusted by over 100,000 geeks!

Last Updated :

Share your thoughts in the comments

GeeksforGeeks

Trending in News