The database system differentiates between two main user classes:
· Database Manager operators (DBM operators)
When
you create a
new database instance, you create the first user in each of these classes.
The first DBM operator is known as the First Database Manager Operator.
The first database user is the database system
administrator (SYSDBA user).
Each
of these users then has the authorization to create additional users of the
specified main classes.
Use the Database Manager to create additional DBM operators.
To create additional database users, use the query tools or the
Loader.
See also: User Concept in the Database Administration documentation.
Note that a Database Manager operator can manage a database instance only; this user cannot work with the database objects (for example, with the query tools or the Loader). A DBM operator is available in all operational states, to enable you to perform all required administration jobs.
The database system administrator (SYSDBA user) can work with the database objects in the ONLINE operational state and also has the authorizations of the first Database Manager operator. This administrator can also perform any Database Manager functions available in the ONLINE operational state.
You can perform the following administration tasks with the Database Manager GUI:
· Creating, Changing, or Deleting a Database Manager Operator
· Changing the User Properties
· Changing the Server Authorizations