A character set determines what languages can be represented in the database.
Oracle recommends Unicode AL32UTF8 as the database character set. Unicode is the universal character set that supports most of the currently spoken languages of the world.
SQL> select PARAMETER,VALUE from nls_database_parameters where PARAMETER like '%NLS_CHARACTERSET%';
PARAMETER VALUE
---------------------------------------- ----------------------------------------
NLS_CHARACTERSET AL32UTF8
In EBS application also we can find character set information in System Administrator--Oracle Applications Manager---SiteMap--System Configuration--License Manager--Languages
