I had the opportunity in the past with my previous job to load Oracle Spatial data and everything was fine.
Today, I try to scratch the surface by installing Oracle Database 12c Release 2.
I created a first database and I managed to make a connection with ArcCatalog without major problem.
Now I have created a second empty database but when I want to connect with QGIS, it does not work even using the 'SYS' user.
What should I do to create an empty base to connect to?