ORA-09986: wrong number of bytes read from SGA definition file
Cause : Struct skgmsdef size differs from no. of bytes read from SGA file
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Compare the two struct definitions and ensure that they are identical in size and structure.
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.