오라클 TO_CHAR 숫자 표시

SELECT
    TO_CHAR('123.456', 'FM999,999,990.009') A,
    TO_CHAR('1234', 'FM999,999,990.009') B,
    TO_CHAR('1234.5678', 'FM999,999,999,999,990.009999999') C,
FROM DUAL

A
123.456

B
1,234.00

C
1,234.5678