ORA-00001 when populating table

I am stepping through a 3rd party how-to book on Oracle8. The book calls for creating an ORDER_DETAILS table in Oracle8 Navigator with a NO DEFAULT, NOT NULL, NOT UNIQUE ORDER_ID primary key field. The book then calls for populating the table with records, several of which have the same ORDER_ID number.

The first time I try to enter a record with the same ORDER_ID number as a previously entered record, I get:

ORA-00001: unique contraint ... violated

What am I doing wrong? Thanks for any help.

-----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own Received on Thu Dec 31 1998 - 08:33:29 CST