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When a client application connects to the database server, it specifies which Sedna database user name it wants to connect as. User name determines access privileges to database objects, therefore, client authentication is used to restrict which database users can connect.
Authentication is the process by which the database server establishes the identity of the client and determines whether the client application (or the user who runs the client application) is permitted to connect with the user name that was requested.
When created with -db-security authorization or -db-security authentication option, database will check the user password on session open.
Currently, Sedna uses password authentication: client application that connects to the database must specify user name and user password (in se_term utility use -pswd and -name options; for client application that works through Sedna API see ”Sedna Programmer’s Guide”). Authentication process consists in checking the password correctness.
A newly created database always contains one predefined DBA user with name "SYSTEM" and password "MANAGER". To start your work with the database, you first have to connect as this initial user.