SELEKTIEREN *
VON Tabelle1 AS t1
LEFT JOIN Tabelle2 AS t2 ON t1.date_start > t2.date_start
--DML
ERSTELLEN TABELLE, WENN NICHT VORHANDEN Employee (id int, salary int, departmentId int);
EINFÜGEN IN Employee (id,salary,departmentId) WERTE (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);
mit cte als(
select *,
rank() over(partition by departmentId order by salary desc) als max_salary
von Employee
)
select *
from cte
wo max_salary = 1
