recursive sql function with rollup logic?

Question

i have a SQL that using a recursive CTE to expand a self-referancing employees table builds a result set of defects aggregated by user and severity level.

here is my CTE

Answer 1

If you modified your cte to include the depth i.e.

WITH yourcte AS  
  (  
    SELECT EmployeeId, ManagerNTID, ManagerID, NTID, FullName, 0 AS Depth
    FROM Employees  
    WHERE NTID = @NTID
    UNION ALL  
    SELECT e.EmployeeId, e.ManagerNTID, e.ManagerID, e.NTID, e.FullName, y.Depth + 1
    FROM Employees e  
    JOIN yourcte y ON e.ManagerNTID = y.NTID
  )

You can then order your output by depth (as the user in the input parameter should be at depth zero). Using this you should also be able to limit the depths you return and aggregate defects where depth >= 1

---

Edit

With the SQL I added above you basically want to rollup all defects to the user at Level 1? So, the NTID of the user at this level becomes the group by item for all records with depth >= 1. Another edit to the cte below adds the NTID as GroupingID which you can use to group by / rollup

WITH yourcte AS  
  (  
    SELECT EmployeeId, ManagerNTID, ManagerID, NTID
          ,FullName, 0 AS Depth, NTID as GroupingID
    FROM Employees  
    WHERE NTID = @NTID
    UNION ALL  
    SELECT e.EmployeeId, e.ManagerNTID, e.ManagerID, e.NTID
          ,e.FullName, y.Depth + 1, CASE
                                       WHEN y.Depth + 1 = 1 THEN e.NTID
                                       ELSE y.GroupingId
                                    END
    FROM Employees e  
    JOIN yourcte y ON e.ManagerNTID = y.NTID
  )