When you configure Web Space Server for Oracle, the lportal database needs to be created with UTF-8 support.
CREATE DATABASE lportal CHARACTER SET [AL32UTF8|UTF8] NATIONAL CHARACTER SET AL16UTF16 CHARACTER SET Clause
Type the character set, the database uses to store data. The supported character sets and default value of this parameter depends on your operating system.
Do not specify the AL16UTF16 character set as the database character set.
Specify the national character set used to store data in columns specifically defined as NCHAR, NCLOB, or NVARCHAR2. Values allowed are AL16UTF16 and UTF8. The default value is AL16UTF16.
Also, refer to the Oracle Database Globalization Support Guide for information on Unicode data-type support. You can access this document at
http://download.oracle.com/docs/cd/B12037_01/server.101/b10749/toc.htm