You can set the NLS_LANGUAGE parameter to another language.
You can set the it per session or you can override this default at the statement level, by setting the NLS_DATE_LANGUAGE parameter.
SQL> SQL> select to_char(sysdate, 'Day') 2 , to_char(sysdate, 'Day', 'nls_date_language=Dutch') 3 from dual; TO_CHAR(SYSDATE,'DAY') | TO_CHAR(SYSDATE,'DAY','NLS_DATE_LANG ------------------------------------ | ------------------------------------ Saturday | Zaterdag SQL>-- from w w w. jav a 2 s .c om