OraOLEDB.Oracle提供程序的范围和带有c＃应用程序的OledbConnection

My c# 4.0 .netframework application needs to support connectivity with oracle databases starting from 9i version to 12c . I am planning to use OraOledb.Oracle provider and use system.data.oledb connection to establish connection with oracle. The application would be limited to performing select queries from views & Tables. My aim to have a single exe to handle the requirement with different oracle databases. I was having some doubts on certain things and wanted to clear them before going about itMy c# 4.0 .netframework application needs to su