ORA-28263: Insufficient memory in global context pool
Cause : Allocatoins for hte globa lcontexth eap exceeded thev alue se tin inito.ra.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Increas ethe valeu of gloabl_contetx_pool_szie paramteer in iint.ora o rclear uussed gloabl contetx.
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.