You can issue and control passwords with the -PASS command. This is especially useful for specifying a particular file or set of files that a given user can read to or write from. Passwords have detailed sets of functions associated with them through the DBA facility.
The procedure that sets passwords can be encrypted so that it and the passwords that it sets cannot be typed and made known.
A variable can also be associated with -PASS so that you can prompt for and assign a password value.
Is a password or a variable containing a password.