SQL Server 2019: Unexpected Results with CTE and Recursive Query Limitation
I'm integrating two systems and I'm upgrading from an older version and I'm updating my dependencies and I'm maintaining legacy code that I'm testing a new approach and I'm working with SQL Server 2019 and trying to use a Common Table Expression (CTE) to perform a recursive query for generating a hierarchical report from an employee table. The scenario arises when the recursion depth exceeds 100 levels; I expect to see all employees in the hierarchy up to level 200, but I'm getting incomplete results and an behavior message stating, "The maximum recursion level of 100 has been reached before statement completion." I've defined my CTE as follows: ```sql WITH EmployeeCTE AS ( SELECT EmployeeID, ManagerID, EmployeeName, 0 AS Level FROM Employees WHERE ManagerID IS NULL UNION ALL SELECT e.EmployeeID, e.ManagerID, e.EmployeeName, Level + 1 FROM Employees e INNER JOIN EmployeeCTE cte ON e.ManagerID = cte.EmployeeID WHERE Level < 200 ) SELECT * FROM EmployeeCTE; ``` I've tried increasing the recursion limit with: ```sql OPTION (MAXRECURSION 200) ``` But it doesn't seem to change anything. Also, I made sure that my employee structure supports deeper hierarchies, as there are entries with multiple levels of managers. Can someone guide me on how to properly configure the CTE to handle deeper recursions or if there’s a limitation I’m overlooking? Has anyone dealt with something similar? I appreciate any insights! The stack includes Sql and several other technologies. Is there a better approach?