Arabic characters not accepted in Oracle DB

Question

his this is database admin

I have a Jboss server with oracle database When I enter the Arabic fonts throung the application the database is not accepting throungh the application ; the arabic charters are also defined ; the operating system is Linux with oracle 10g and Jboss server with j2ee application

Answer 1

Let my do some guessing:

• was the database defined as using unicode?
• does the connecting middleware support unicode?
• are the unicode encodings the same (f.e. UTF-8 for app, middleware, and database)?

Answer 2

Can you enter Arabic characters direct to the database (eg SQLLDR or even a standard insert statement in SQL*Plus) ? What is the characterset of the database (query NLS_DATABASE_PARAMETERS)