v$nls_parameters

    iSQL> select * from v$nls_parameters;
    SESSION_ID                : 122        
    NLS_USE                   : US7ASCII                 -- 접속 client  캐릭터 셋
    NLS_CHARACTERSET          : MS949       -- DB 캐릭터 셋                                    
    NLS_NCHAR_CHARACTERSET    : UTF8 --DB national 캐릭터셋                                    
    NLS_COMP                  : BINARY  
    NLS_NCHAR_CONV_EXCP       : FALSE   
    NLS_NCHAR_LITERAL_REPLACE : FALSE