Maybe a stupid question.

I have already installed ZCM with the internal Sybase without any problem.

Now I have to use an external Oracle database.

The DBA admin has created a new Database/instance on another machine.
I got all the info (I think): IP address, user, SID, ...

Now when I tried to install ZCM, I have an error message "unable to connect the database...."

So, the DBA administrator has installed the Oracle client on the ZCM server and tried the connectivity to Oracle => Ok ...
But always the same error for ZCM ... Unable to connect the database ...

What's wrong ?