Privileges control users' access to database objects and the
operations they can perform in the database. USER and PROGRAM
idents are protected by a password, which must be given together
with the correct ident name in order for a user to gain access
to the database or to enter a program ident. Passwords are
stored in encrypted form in the data dictionary and cannot be
read by any ident, including the system administrator. A
password may only be changed by the ident to which it belongs or
by the creator of the ident. A set of access and privileges
define the operations each ident is permitted to perform. There
are three classes of privileges in a Mimer SQL database: System
privileges control the right to perform backup and restore
operations, the right to execute the UPDATE STATISTICS statement
as well as the right to create new databanks, idents, schemas
and to manage shadows. System privileges are granted to the
system administrator when the system is installed and may be
granted by the administrator to oth