Oracle vs UTF-8

Many people in the first working on ASP.NET and Oracle project have this prob include me. It's the way to solve this:

1/ Sure store datatype is varchar2 (unicode 2 byte)

2/ Make the environment variable:

Variable Name = NLS_LANG

Variable Value = Japanese_Japan.UTF8

3/ Run regedit and HKEY_LOCAL_MACHINE --> Software --> Oracle

change value of any NLS_LANG registry to Japanese_Japan.UTF8

4/ If you use ProcInServer.dll to connect ASP.NET to the Oracle database. You must add write permittion for user ASPNET for both of 2 file ProcInServer.dll in the Bin directory of your project and ProcInServer.dll in the Bin Oracle directory (may be for all Bin Oracle Directory)

That's all my knowledge. Please don't ask me any else. If you have still trouble, you must ask some experts. Thanks

Just ignore what I say, Micheal.

That all I want to share to anonymous after spent a or two hours searching on Internet to solve this problem. I hope it will help someone save the time in the future.