Vali *
Tabelist 1 nagu t1
Vasakpoolne JOIN tabelist 2 nagu t2 ON t1.date_start > t2.date_start
--DML
Loo tabel, kui see ei eksisteeri Employee (id int, salary int, departmentId int);
Lisa Employee tabelisse (id,salary,departmentId) väärtustega (1, 70000, 1),(2, 94000, 1),(3, 85000, 1),(4, 80000, 2),(5, 60000, 2),(6, 62000, 3),(7, 90000, 3),(8, 94000, 3),(9, 94000, 3);
cte nagu(
vali *,
rank() over(partition by departmentId order by salary desc) nagu max_salary
Employee-st
)
vali *
from cte
kus max_salary = 1
