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

In case no special error handling needed in CATCH except rethrow and stored procs call chain isn't too long it may be suitable to use such simple template:

create procedure someNestedSP
as
SET XACT_ABORT ON
begin transaction
-- do some work or call some other similar SP
commit transaction

It would also rollback root transaction with all "nested" ones in case of any error but the code is shorter and more straightforward than @gbn's solution. Still XACT_ABORT takes care of most issues mentioned there.

There may be addiotional overhead for transaction nesting but it may be not too high, I guess.