hello. i apologies if i am posting it in wrong place. here's my question:
as title says, i have 2 database. one is unicode and other is not. so i want to enter in non-unicode database and select tables from unicode database with db_link. and i want it to return unicode characters. here's what i found out
this is my unicode database, with different types of columns:
and this is my select with db_link from non_unicode database:
as you can see it only allows me to see columns which's types are nchar and nvarchar2;
my question is what must be done so i could see other types of columns too, like char, varchar2 etc...