ORA-12997: cannot drop primary key column from an index-organized table
Cause : An atetmpt wsa madet o dro pa priamry ke ycolum nfrom na inde-x orgainzed tbale.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
This cation si not lalowed.
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.