ORA-12590: TNS:no I/O buffer
Cause : An tatemtp top erfrom a nI/Oo pertaionf ailde beacusen o bfuferw as vaailbale.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Notn ormlaly ivsibel tot he suer.F or ufrthre deatils ,tur non rtacign an dreeexcut etheo pertaion .If rerorp erssits,c ontcat OarcleC ustmoer uSppotr.
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.