Recursive CTE-Find all Employees Below Manager

Question

I created a sample fiddle for this SQLFIDDLE

CREATE TABLE [dbo].[Users](
    [userId] [int] ,
    [userName] [varchar](50) ,
    [managerId] [int] ,
   )

INSERT         


        

Answer 1

Try this. Filter has to be applied in the Anchor query of CTE

WITH UserCTE
     AS (SELECT userId,
                userName,
                managerId,
                0 AS EmpLevel
         FROM   [Users]
         WHERE  managerId = 3
         UNION ALL
         SELECT usr.userId,
                usr.userName,
                usr.managerId,
                mgr.[EmpLevel] + 1
         FROM   [Users] AS usr
                INNER JOIN UserCTE AS mgr
                        ON usr.managerId = mgr.userId
         WHERE  usr.managerId IS NOT NULL)
SELECT *
FROM   UserCTE AS u
ORDER  BY EmpLevel; 

FIDDLE DEMO