ORA-16955: Unknown error during SQL analyze.

Cause : The specified SQL statement failed to be analyzed.

Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts

This is an internal error, please contact Oracle support.

update : 25-04-2017
ORA-16955

ORA-16955 - Unknown error during SQL analyze.
ORA-16955 - Unknown error during SQL analyze.

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    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.