You may have one set of user accounts in your application, another set in your database system, and yet another set in your operating system. Sometimes it might be convenient to make some of these accounts identical in each system, and sometimes you might want different sets in different systems. There are a number of ways to support each approach. Several hacks in this chapter look at the creation of administrator user accounts, and how to audit database user activity.
This chapter also considers the problem of how to design an application for easy installation into a database system. In some systems, the person installing the application won't have administrator rights, so your application has to be flexible enough to support different styles of installation.