SQL & PL/SQL

Hello All,

I use Oracle 19, how to set first week day as monday in database level? Not session level.

ALTER SESSION SET NLS_TERRITORY = TURKEY;

SQL> select to_char(sysdate, 'D'), to_char(sysdate, 'DAY') from dual;

T TO_CHAR(SYSDATE,'DAY')
- ------------------------------------
2 MONDAY

Thanks