ORA-27087: unable to get share lock - file not readable
Cause : share lock request was made on a file not open for read access.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
file must be open read-only or read-write to get a share lock.
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.