how to tell if your db in unicode or non unicode

[hany]

I am trying to see if the database is unicode or non unicode. I thought it was non-unicode but when I run the following query:
select * from NLS_DATABASE_PARAMETERS i get the following value for NLS_NCHAR_CHARACTERSET=AL16UTF16.

I found that AL16UTF16 is unicode so I am correct in saying my db is unicode?

No, this does not mean your database is unicode.

This is NLS_NCHAR_CHARACTERSET parameter, it's set to AL16UTF16 by default. What you need to check is the NLS_CHARACTERSET.

Regards,
Hany.