I am writing a web service under the ASP.NET MVC Framework that should work with Oracle DBMS. Oracle Developer Tools for Visual Studio 2017 is installed. Problem: VS doesn’t see oracle at an emphasis if you run Tools - Connect to the database - an Oracle database crashes.
DBMS - Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Production. (I tried to establish a connection through the entity framework, connected all the necessary libraries, also in vain: when trying to create a model of ADO.NET EDM, VS suggests using MS SQL Server as a data source, Oracle is not listed) 