Changing passwords of oracle users

Question

Dear all
I wander is there any problem if changing password of oracle users SAPOWNER, system,sys . (I guess command for that is brconnect -u system/<password> -f chpass -o <sapowner> -p <password>
). What about sys and system. (I hope that after changing passwords the system will be functional)
Which user is used when "sqlplus / as sysdba"
thank you in advance

Answer 1

Hello Jan,
I wander is there any problem if changing password of oracle users SAPOWNER, system,sys
Well we already discussed the SAPOWNER here: http://forums.sdn.sap.com/message.jspa?messageID=10814500#10814500
If you change the password of SYSTEM or SYS there will be no problem at all. These users/password combination is not used in a SAP environment unless you explicitly specify the SYSTEM user and password in some BR*Tools calls like brconnect. If you just use the "/" default approach, the OS authentication mechanism (OSDBA) is used - so no issue there at all.
@Orkun:
This is not a user, but a role. So when you connect to the database by using "/as sysdba" you will be able to connect to the system by sysdba role not by a user.
If you use this apporach you are connected with the user SYS - so you are using a user for sure (and btw. you can only logon with SYS by using SYSDBA role). The only difference between "sqlplus / as sysdba" and "sqlplus SYS as sysdba" is, that you are using the specified OSDBA group with the first approach (so no password is required).
shell> pwd
/oracle/<SID>/11202/rdbms/lib
shell> grep dba config.s
#  SS_DBA_GRP defines the UNIX group ID for sqldba adminstrative access.
        .rename H.16.ss_dba_grp{TC},"ss_dba_grp"
        .globl  ss_dba_grp{RW}
T.16.ss_dba_grp:
        .tc     H.16.ss_dba_grp{TC},ss_dba_grp{RW}
        .csect  ss_dba_grp{RW}, 3
# End   csect   ss_dba_grp{RW}
        .string "dba"
shell> sqlplus / as sysdba
SQL> SELECT sys_context('USERENV', 'SESSION_USER') FROM DUAL;
SYS_CONTEXT('USERENV','SESSION_USER')
SYS
shell> sqlplus SYS as SYSDBA
Enter password:
SQL> SELECT sys_context('USERENV', 'SESSION_USER') FROM DUAL;
SYS_CONTEXT('USERENV','SESSION_USER')
SYS
Regards
Stefan