SQL Server TRY CATCH FINALLY

Question

I have a scenario where I need something similar to .NET\'s try-catch-finally block.

On my try, I will CREATE a #temp table, INSERT

Answer 1

using custom error number to indicate there no real error, just final code?

-- create temp table;
BEGIN TRY
    -- use temp table;
    THROW 50555;
END TRY
BEGIN CATCH
    -- drop temp table;
    IF ERROR_NUMBER() <> 50555
        THROW;  -- rethrow the error
END CATCH