ORA-25330: PL/SQL associative arrays may not be used with AQ array operations
Cause : A PL/SQL associative array was provided for the payload parameter in an enqueue/dequeue array operation.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Use VARRAY or NESTED TABLE types with AQ array operations.
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.