ORA-22828: input pattern or replacement parameters exceed 32K size limit
Cause : Value provided for the pattern or replacement string in the form of VARCHAR2 or CLOB for LOB SQL functions exceeded the 32K size limit.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Use a shorter pattern or process a long pattern string in multiple passes.
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.