SQL 숫자 표현 (to char)

SQL> select ename, sal, to_char(100000000.2345, '9,999,999')
  2  from emp;


SQL> select ename, sal, to_char(0.123, '9,999,999.99')
  2  from emp;
// .12로 출력

SQL> select ename, sal, to_char(0.123, '9,999,990.99')
  2  from emp;
// 0.12로 표현