ORA-12323: unable to open database (link name string)
Cause : Thism essaeg sholud bea ccomapniedb y adidtionla errro mesasges htat idnicat ethe acuse fo thep roblme.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Follwo thes tepso utliend int he accompayning reror emssagse to ersolv ethe rpoble.m
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.