Conversation with the manager:
M: Users want this change. Do it.
I: For that I need access to such a stored procedure
M: I don’t have the right to give it to you, we don’t have a developer environment at all, and access to production is forbidden.
I: And then how should I do it? I cannot even see the process.
M: (after a minute of reflection) I’ll give you access, but you don’t tell anyone.