Nested stored procedures containing TRY CATCH ROLLBACK pattern?

Question

I\'m interested in the side effects and potential problems of the following pattern:

CREATE PROCEDURE [Name]
AS
BEGIN
    BEGIN TRANSACTION
    BEGIN TRY
            


        

Answer 1

-- @Amanda method above doesnt return correct error number

DECLARE  
  @ErrorMessage   nvarchar(4000),  
  @ErrorSeverity   int,  
  @ErrorState int,  
  @ErrorLine  int,  
  @ErrorNumber   int  

BEGIN TRY  
 SELECT 1/0; -- CATCH me  
END TRY  

BEGIN CATCH  

  DECLARE @err int = @@ERROR  

  PRINT @err           -- 8134, divide by zero  
  PRINT ERROR_NUMBER() -- 8134  

  SELECT  
    @ErrorMessage  = ERROR_MESSAGE(),  
    @ErrorSeverity = ERROR_SEVERITY(),  
    @ErrorState    = ERROR_STATE(),  
    @ErrorNumber   = ERROR_NUMBER(),  
    @ErrorLine     = ERROR_LINE()  

  -- error number = 50000 :(  
  RAISERROR (@ErrorMessage, @ErrorSeverity, @ErrorState, @ErrorNumber, @ErrorLine)  

END CATCH  

-- error number = 8134  
SELECT 1/0