@schroeder I'm not sure I follow. For the record, I have a testing environment in which I have access to the DB and can see it's structure and entries. I'm searching for the SQL syntax / construct that will let me turn an update query to an insert query, for example.

@Jeff Yes. Unfortunately that side-effect is quite meaningless since the table does not list users (or anything else that'll have any considerable effect when modifying). Thank you both for taking the time and reading, tho!

@schroeder I don't want specifically a shell, as I've mentioned in my question. I want something that carries an effect. Unfortunately, I have failed to find something that has any significant effect, as I've described under "what i've tried"