Aside of the obvious SQL injection (heck - the way this is set up, it obviously even takes multiple queries in one string - this is pure heaven from an injection standpoint), I&#x27;m also wondering what kind of schema this is?<p>Creating an user as a sequence of operations? Why?<p>Imagine the ways this data can get corrupted? What if for some reason only one of the queries executes? What if somebody removes one of the rows for a user but not the other when doing support or maintenance?