ORA-14626: values being added already exist in DEFAULT subpartition
Cause : An ADD VALUE operation cannot be executed because the values being added exist in the DEFAULT subpartition
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Issue a SPLIT of the DEFAULT subpartition and then MERGE the split subpartition into the subpartition to which values need to be added
Well, the reason for above error is that i have taken the above script from a 11g database and running it on 10g database. 11g has bring some changes in password management. Below code is executed on 11g and user created successfully, which is expected result.