查询主管及所有员工



DECLARE
  @ParentID int =2, @Level int = 3
 
;WITH CTE AS
(
SELECT 0 LEVEL, T.EMPLOYEE,T.SUPERVISOR
  FROM STAFF T
 WHERE T.EMPLOYEE =@ParentID
 UNION ALL
SELECT B.LEVEL+1,A.EMPLOYEE,A.SUPERVISOR
  FROM STAFF A
  JOIN CTE B
    ON A.SUPERVISOR=B.EMPLOYEE
 WHERE A.EMPLOYEE<>A.SUPERVISOR
)
SELECT *
  FROM CTE
 WHERE LEVEL = @Level;
Selina-19 2017-09-20 18:24:06

DECLARE @ID int=13
 
;WITH CTE AS 
(SELECT 0 LEVEL, T.EMPLOYEE,T.SUPERVISOR
  FROM STAFF T
 WHERE T.EMPLOYEE =@ID
 UNION ALL
SELECT B.LEVEL+1,A.EMPLOYEE,A.SUPERVISOR
  FROM STAFF A
  JOIN CTE B
    ON A.EMPLOYEE=B.SUPERVISOR
 WHERE A.EMPLOYEE<>A.SUPERVISOR)
 SELECT * FROM CTE
 
 SELECT * FROM STAFF;