Hi Chirag, I have did the same as you did, but mine is working.. I think there is some problem with your end... Here is the case study : SQL> select name from v$database; NAME --------------------------- VED SQL> select user#,name from user$ where name like 'SCO%'; USER# ---------- NAME -------------------------------------------------------------------------------- 59 SCOTT SQL> update user$ set name='HERMESNEW' where user#=64; 0 rows updated. SQL> updated user$ set name='SUNIL' where user#=59; SP2-0734: unknown command beginning "updated us..." - rest of line ignored. SQL> update user$ set name='SUNIL' where user#=59; 1 row updated. SQL> commit; Commit complete. SQL> select user#,name from user$ where name like 'HER%'; no rows selected SQL> ed Wrote file afiedt.buf 1* select user#,name from user$ where name like 'SUN%' SQL> / USER# ---------- NAME -------------------------------------------------------------------------------- 59 SUNIL SQL> alter user sunil identified by sunil; User altered. SQL> connect sunil/sunil Connected. SQL> QUERIES in Oracle, Feel free to Join: http://groups.yahoo.com/group/oracle_expert/ Regards, Sunil Bhola Oracle_Expert, Moderator Chirag DBA <chiragdba@xxxxxxxxx> wrote: Hi, I am changing the name of user in USER$ table. SQL> select user#,name from user$ where name like 'SCO%'; USER# NAME ---------- ------------------------------ 59 SCOTT 64 SCOTT1 SQL> update user$ set name='HERMESNEW' where user#=64; 1 row updated. SQL> commit; Commit complete. SQL> select user#,name from user$ where name like 'SCO%'; USER# NAME ---------- ------------------------------ 59 SCOTT SQL> select user#,name from user$ where name like 'HER%'; USER# NAME ---------- ------------------------------ 65 HERMES 64 HERMESNEW SQL> alter user hermesnew identified by chirag; User altered. SQL> conn hermesnew/chirag ERROR: ORA-01017: invalid username/password; logon denied Warning: You are no longer connected to ORACLE. SQL> select username from dba_users; SP2-0640: Not connected SQL> conn / as sysdba Connected. SQL> select username from dba_users where username like 'HE%'; USERNAME ------------------------------ HERMES This seems not to be permanent. Which view will help me to change it permanently? Regards -- Chirag --------------------------------- Yahoo! for Good Click here to donate to the Hurricane Katrina relief effort.