Using Session Mode 
If you want to execute DBM commands that require a database session or a service session, you have to use the Database Manager in session mode or script mode.
We recommend that you work in session mode if you want to execute actions that require a succession of DBM commands.
If you want to create a complete data backup of the database instance, you first have to open a database session. To execute the backup operation, you need a suitable backup template.
Scenario
You want to back up the database instance DEMODB using the backup template DemoDataCompl.
Procedure
Call the Database Manager CLI in session mode, log on as operator OLEG with password MONDAY, and connect to database instance DEMODB:
>dbmcli -u OLEG,MONDAY -d DEMODB
dbmcli on DEMODB>
Open a database session:
dbmcli on DEMODB>db_connect
OK
Start a data backup using the backup template DemoDataCompl:
dbmcli on DEMODB>backup_start DemoDataCompl
OK
Returncode 0
Date 20051229
Time 00104810
Server GENUA
Database DEMODB
Kernel Version Kernel 7.6.00 Build 016-123-109-428
Pages Transferred 384
Pages Left 0
Volumes 1
Medianame DemoDataCompl
Location Backups 2005\Data\completeDataJan
Errortext
Label DAT_000000003
Is Consistent true
First LOG Page 15939
Last LOG Page
DB Stamp 1 Date 20051229
DB Stamp 1 Time 00104809
DB Stamp 2 Date
DB Stamp 2 Time
Page Count 365
Devices Used 1
Database ID GENUA:DEMODB_20051201_111620
Max Used Data Page 0
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dbmcli on DEMODB>