Identity column/ Sequence object in AS400 V4R5 Database.

Deepak Kini M

Identity column/ Sequence object in AS400 V4R5 Database.
Dear List:

a) GENERATE_UNIQUE function is available in DB2 UDB V6.1 and later.
b) Identity Column in CREATE TABLE statement available in DB2 UDB V7.1
and later.
c) SEQUENCE Object available in DB2 UDB V7.2.

Is there a similar feature in database for AS400 V4R5, where primary
key can be auto incremanted?
I am not sure about the version of database(UDB) that comes along with
AS400 V4R5.

Thanks for your help
Deepak