Skip to content

Fix SQL queries for employee title and salary counts #103

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
AdityaTharunJ wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Fix SQL queries for employee title and salary counts #103

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
24 changes: 21 additions & 3 deletions SQL Deep Dive/Having/questions.sql
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -3,18 +3,36 @@
* Show me all the employees, hired after 1991, that have had more than 2 titles
* Database: Employees
*/

select e.emp_no, count(t.title) as "Amount of titles"
From employyes as e
JOIN titles as t USING(emp_no)
WHERE EXTRACT (YEAR FROM e.hire_date) > 1991
GROUP BY e.emp_no
HAVING count(t.title) > 2
ORDER BY e.emp_no;


/*
* Show me all the employees that have had more than 15 salary changes that work in the department development
* Database: Employees
*/

SELECT e.emp_no, count(s.from_date) as "Amount of raises"
FROM employees as e
JOIN salaries as s USING(emp_no)
JOIN dept_emp as de USING(emp_no)
WHERE de.dept_no = 'd005'
GROUP BY emp_no
HAVING count(s.from_date) > 15
GROUP BY emp_no;


/*
* Show me all the employees that have worked for multiple departments
* Database: Employees
*/

select emp_id, count(de.dept_no) as "worked for # dept"
FROM employees as e
JOIN dept_emp as de USING(emp_no)
HAVING count(de.dept_no) > 1
ORDER BY e.emp_no
GROUP BY e.emp_no;