백제완: [SQL] Department Top Three Salaries_241210

Author: jewan100

SQL/14주차/Department_Top_Three_Salaries.sql

@@ -0,0 +1,17 @@
+SELECT
+    B.name `Department`
+    , A.name `Employee`
+    , A.salary `Salary`
+FROM
+    Employee A
+    INNER JOIN Department B 
+        ON A.departmentId = B.id
+WHERE
+    (
+        SELECT COUNT(DISTINCT salary)
+        FROM Employee C
+        WHERE departmentId = A.departmentId AND salary >= A.salary
+    ) <= 3
+ORDER BY
+    Department
+    , Salary DESC