Page History: dbo uspGetManagerEmployees (procedure)
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Page Revision: 2010/01/09 17:52
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| procedure | dbo.uspGetManagerEmployees |
| Description | Stored procedure using a recursive query to return the direct and indirect employees of the specified manager. |
CREATE PROCEDURE [dbo].[uspGetManagerEmployees]
@ManagerID [int]
AS
BEGIN
SET NOCOUNT ON;
-- Use recursive query to list out all Employees required for a particular Manager
WITH [EMP_cte]([EmployeeID], [ManagerID], [FirstName], [LastName], [RecursionLevel]) -- CTE name and columns
AS (
SELECT e.[EmployeeID], e.[ManagerID], c.[FirstName], c.[LastName], 0 -- Get the initial list of Employees for Manager n
FROM [HumanResources].[Employee] e
INNER JOIN [Person].[Contact] c
ON e.[ContactID] = c.[ContactID]
WHERE [ManagerID] = @ManagerID
UNION ALL
SELECT e.[EmployeeID], e.[ManagerID], c.[FirstName], c.[LastName], [RecursionLevel] + 1 -- Join recursive member to anchor
FROM [HumanResources].[Employee] e
INNER JOIN [EMP_cte]
ON e.[ManagerID] = [EMP_cte].[EmployeeID]
INNER JOIN [Person].[Contact] c
ON e.[ContactID] = c.[ContactID]
)
-- Join back to Employee to return the manager name
SELECT [EMP_cte].[RecursionLevel], [EMP_cte].[ManagerID], c.[FirstName] AS 'ManagerFirstName', c.[LastName] AS 'ManagerLastName',
[EMP_cte].[EmployeeID], [EMP_cte].[FirstName], [EMP_cte].[LastName] -- Outer select from the CTE
FROM [EMP_cte]
INNER JOIN [HumanResources].[Employee] e
ON [EMP_cte].[ManagerID] = e.[EmployeeID]
INNER JOIN [Person].[Contact] c
ON e.[ContactID] = c.[ContactID]
ORDER BY [RecursionLevel], [ManagerID], [EmployeeID]
OPTION (MAXRECURSION 25)
END;