The database system differentiates between the following user classes:
· Database Manager operator (DBM operator)
DBM operators can work with the Database Manager to administer database instances. However, they cannot log on to the query tools.
Database users can work with the query tools, for example, to send SQL statements to the database. However, they cannot log on to the Database Manager. One exception is the database system administrator (SYSDBA user). This user has the authorizations of a Database Manager operator.
See also:
Connecting to a Database Instance