Úloha #2
Napíšte dotaz, ktorý zobrazí TOP-3 zamestnancov podľa platu v každom oddelení.
Zobrazte názov oddelenia, meno zamestnanca a jeho plat.
tabuľka employee:
| id | name | salary | dept_id |
|----|-------|--------|---------|
| 10 | John | 1000 | 2 |
| 20 | Tom | 5000 | 3 |
| 30 | Bill | 3000 | 2 |
tabula department:
| id | name |
|----|-----------|
| 1 | Marketing |
| 2 | IT |
| 3 | Financie |
Výstup: department_name, num, employee_name, salary
s cte ako(
select d.name as department_name,
e.name as employee_name,
e.salary,
dense_rank
z employee e
spojte sa s department d na e.id = d.id
