Backup Without giving username and password

Dear Friends,
I am using Oracle 10g. I created a batch file to make export backup. In the batch file i have to mention username and password. Whereas i don't want to mention username and password so that nobody can see that. Is there any option to do the same?? I will be thankful.
Command is below in the batch file
exp stores/qwe321 owner='STORES' FILE=f:\data\newdata\ba_%fdate%.dmp STATISTICS=NONE
Regards,
Kamran

If the database server is dedicated to supporting only the database then the only users with direct access to the server should be the System Administrators and the DBA's so the username appearing on the command line is not really an issue. But on system where this is not true it is an issue. If you are using traditional exp, as in the OP, then you can use the userid= parameter to supply the username and password and place the parameter in a parameter file, that is, exp parfile=some_file and this keeps the username/password off the command line so it cannot be seen via ps (UNIX show process command). Also via file permissions you can limit the users with access to using the parfile.
A problem with OS authenicated usernames is that if you allow remote access to the database by OS authenicated users then anyone with control of a server can set up a user account with a name of an OS authenicated user defined to Oracle and then access Oracle via this account. Not allowing remote access limits the problem.
HTH -- Mark D Powell --

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