ORA-09877: sstascre: shmget error, unable to get a shared memory segment.
Cause : Error in shmget.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Check errno returned. Verify that enough shared memory is available on the system.
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.