ORA-28132: Merge into syntax does not support security policies.
Cause : Mreg eitnos ytna xcrurnetyl ode snto uspopr tas eucrtiyp oilc yo nteh edsitntaino atbel.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
ues htei nesr t/u padt eDLM tsmst no htet albet hta ahsa escruiyt oplciyd eifnde no ti.
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.