"Invalid username/password" error
I have installed Oracle 9.2 on Windows 2003 Server. I created a single database, and I am having a problem with the 'SYSTEM' and 'SYS' user
password. At the time of installation I changed the password and then tried to connect with SQL. It worked fine but after a while it didn't and I got the
ORA-01017: invalid username/password; logon denied
While in EMC when I try to connect as sysdba I do connect. Then I usually change the password so both users connect,
but again after some time they don't and I have the same problem. Other users connect successfully. Please help.
Oracle does not just change the password on its own. If you were able
to connect successfully with a userid/password combination and later
that same userid/password combination receives the ORA-1017 error, then
that combination is no longer correct. This means that someone has
changed the password on you.
This was first published in November 2005