I use turkish character in my username "İ", its works fine while logging on oracle enterprise with browser but when I try to connect database with visual studio it makes problem so I think 3 diffrent kind of idea may able to help solve this issue.
-How can I change my oracle username ?
-How can I make vs with working turkish characters too("Ç, Ş, İ)"
-How can I create new user without lost any data in oracle manager( İts like create an alias to referance old user's info. tables roles privileges everything must be same, just user name different )
Thank you who feel try to help