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Update exercises(my answers).sql #86

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19 changes: 18 additions & 1 deletion SQL Deep Dive/Grouping Sets/exercises.sql
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Original file line number Diff line number Diff line change
Expand Up @@ -3,10 +3,27 @@
* Database: Employees
* Table: Employees
*/
select grouping(e.dept_no), e.dept_no, COUNT(e.emp_no)
FROM public.dept_emp as e
GROUP BY
GROUPING SETS (
(e.dept_no),
()
)
order by e.dept_no


/*
* Calculate the total average salary per department and the total using grouping sets
* Database: Employees
* Table: Employees
*/

select grouping(de.dept_no), de.dept_no, AVG(e.salary)
FROM public.salaries as e
JOIN public.dept_emp as de USING (emp_no)
GROUP BY
GROUPING SETS (
(de.dept_no),
()
)
order by de.dept_no