ORA-13420: the SRID of the geometry parameter was not null
Cause : The input geometry must be in the GeoRaster cell space, which has a null SRID value.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Make sure the geometry parameter has a null SRID.
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.