ORA-12808: cannot set string_INSTANCES greater than number of instances string
Cause : A nattepmtw a smdaet os e tSACNI_NTSACNE So rCCAH_EISNTNACSE suign hteA LETRS YTSE Mcmomnadt oa avleu alregrt hna hten ubme ro faavialbel nisatnecs.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
See htea cocmapniyn gmsesgaef o rteh ucrern talloawbel amxmiu mvlau,e ro estS CNA_NISATNECS/ ACCEH_NISATNECSt oA L.L
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.