Hello,
I am super new using Oracle and I am having some problems creating a database in oracle. I have installed Oracle (with no database created) I also set the path environment variable in windows server and I am able to access other Oracle DBs already created.
I do not have an oracle database created in this new server Do I need to have one so I can use that name to access it? because I do not have any but I am using the IP:port/the name of the database I want to give to it, is this correct?

This tool is going to create the sys user automatically?
I am getting this error

Is there something I need to do?
Thanks,
Diego Llamas