CREATE TRIGGER [Production].[uWorkOrder] ON [Production].[WorkOrder] 
AFTER UPDATE AS 

BEGIN
DECLARE @Count int;
SET @Count = @@ROWCOUNT;
IF @Count = 0 
RETURN;
SET NOCOUNT ON;
BEGIN TRY
IF UPDATE([ProductID]) OR UPDATE([OrderQty])
BEGIN
INSERT INTO [Production].[TransactionHistory](
[ProductID]
,[ReferenceOrderID]
,[TransactionType]
,[TransactionDate]
,[Quantity])
SELECT 
inserted.[ProductID]
,inserted.[WorkOrderID]
,'W'
,GETDATE()
,inserted.[OrderQty]
FROM inserted;
END;
END TRY
BEGIN CATCH
EXECUTE [dbo].[uspPrintError];
IF @@TRANCOUNT > 0
BEGIN
ROLLBACK TRANSACTION;
END
EXECUTE [dbo].[uspLogError];
END CATCH;
END;