Joined: 06 Dec 2004 Posts: 211 Location: Keane Inc., Minneapolis USA.
The Present DB2 version number is 8.2. But most of the projects are using version 7. You can see this version in DB2 documentation by typing qw <sqlkeyword> at command line. You can also use FileAid for DB2. It displays the DB2 version number.
The subsystem purely depends on your system structure. For example for testing region you use one Subsystem and for realtime another sub system. You must ask DBA to provide this information. Or you can refer to your previous program.