Re: Change username in DBA

From: Radoulov, Dimitre <cichomitiko_at_gmail.com>
Date: Sat, 1 Oct 2005 19:07:52 +0200
Message-ID: <044001c5c6aa$b1b200e0$e800a8c0@IBME1D11967173>

There should be a reason for Tom Kyte's answer :O)

<quote>
I'm surprised Tom let the one about updating the sys.user$ table slip by without any chiding. Wouldn't that be a strict no-no anyways?

Kashif

Followup:
that would be strictly a no-no -- 100%

</quote>

HI,
Dimitre

Original Message ----- From: Chirag DBA To: David Sharples Cc: Radoulov, Dimitre ; Oracle-L Freelists ; Ganesh Raja Sent: Saturday, October 01, 2005 7:00 PM Subject: Re: Change username in DBA_USERS

D O N E ..... ! ! ! ! !

was thinking of changing the ownership column first. But see, this works, with not a single error or warning in TRACE file. SQL> select user#,name from user$ where name like 'SCOT%';

USER# NAME

------------------------------ 59 SCOTT 64 SCOTT1

SQL> update user$ set name='HERMESNEW' where user#=64;

1 row updated.

SQL> commit;

Commit complete.

  SQL> shutdown immediate;
  Database closed.
  Database dismounted.
  ORACLE instance shut down.
  SQL> startup
  ORACLE instance started.

Total System Global Area 105978600 bytes

  Fixed Size                   453352 bytes
  Variable Size              79691776 bytes
  Database Buffers           25165824 bytes
  Redo Buffers                 667648 bytes

  Database mounted.
  Database opened.
  SQL> select user#,name from user$ where name like 'SCOT%';

USER# NAME

------------------------------ 59 SCOTT

SQL> select user#,name from user$ where name like 'HER%';

USER# NAME

------------------------------ 65 HERMES 64 HERMESNEW

SQL> select username from dba_users where username like 'HER%';

USERNAME

HERMES
HERMESNEW SQL> alter user hermesnew identified by chirag;

User altered.

  SQL> conn hermesnew/chirag
  Connected.
  SQL> select * from tab;

  TNAME                          TABTYPE  CLUSTERID
  ------------------------------ ------- ----------
  BONUS                          TABLE
  CHIRAG                         TABLE
  DEPT                           TABLE 
  EMP                            TABLE
  SALGRADE                       TABLE
  TEMP1                          TABLE

6 rows selected.

  SQL> sho user
  USER is "HERMESNEW"
  SQL>   Thanx to everyone....

Regards - Chirag

On 10/1/05, Chirag DBA <chiragdba_at_gmail.com> wrote: hmmmm...!!!

Its a large dump, takes more than 5 hrs. so thinking to get it in "SHORT WAY".

Export problem was because of replicated objects.

can afford to have a corruption on my local test database.

regards - chirag

On 10/1/05, David Sharples <davidsharples_at_gmail.com > wrote: simple, dont do it, not supported, doesnt work and corrupts the data dictionary and oracle support would tell you to go away.

Any good person will tell you to stop right now and do it the proper way

Fromuser / touser export is the only way of doing it, so fix your export problems.

       
      On 10/1/05, Chirag DBA <chiragdba_at_gmail.com > wrote: 
        Its not a joke and am doing this on test.

        I remember one incident on LAZYDBAs , where a DBA did programming on USER_ID and then required to change the USER_ID. He did it someway, but I am unable to recollect.

        There must be the way we can do. ( I think so).

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Received on Sat Oct 01 2005 - 12:10:14 CDT

Re: Change username in DBA_USERS