Help needed for Inserting chinese character in DB(Oracle)

[srisaran2003]

Hi,
I have already posted the query for inserting the chinese character into DB(Oracle).
No body replied me....If any one knows about my doubt ..please help me.


preparedStatement.setObject(i, "邮箱大小为");
preparedStatement.execute();

datatype as Nvarchar, after executed this query,iam getting ????? in DB.
So i need to store in DB chinese character (邮箱大小为 only .PLease help me.
Thanks,
Sridhar.R