Re: Change username in DBA_USERS

http://asktom.oracle.com/pls/ask/f?p=4950:8:7572911208931976686::NO::F4950_P8_DISPLAYID,F4950_P8_CRITERIA:30020192108317

Regards,
Dimitre

• Original Message ----- From: Chirag DBA To: Radoulov, Dimitre Cc: Oracle-L Freelists Sent: Saturday, October 01, 2005 7:12 PM Subject: Re: Change username in DBA_USERS

  I am unable to find the page you are looking of TOM Kyte. Can u send me the URL?

  I was trying cause I knew someone has done this in past. just forgot the "HOW" portion.

  Now the question is what will be the affect of doing this. I didn even find anythinng about this in trace file.

  Is this the simple update for Oracle like any other schema. No way.

  Regards - Chirag    

  On 10/1/05, Radoulov, Dimitre <cichomitiko_at_gmail.com> wrote:     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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