Attempt to establish the first DB2 database in the afternoon, I have been reporting 1092N errors. Check for a long time, finding the username of landing DB2 is User1 instead of Domain / User1. The user does not exist in the native operating system, and does not need to enter a user password. Create a USER1 user and join the Administrator Group. Discover the login again, ask for a password, correct! PS: BY Default, DB2 database is created under "Disk: / DB2 /".