求教一道TO_CHAR的题
下面SQL语句的输出结果为“$2,000.00”的是 ( )A.SELECT TO_CHAR (2000,'$0,000.00')FROM dual;
B.SELECT TO_CHAR (2000,'$9,999.00')FROM dual;
C.SELECT TO_CHAR (2000,'$9,999.99')FROM dual;
D.SELECT TO_CHAR (2000,'$2,000.00')FROM dual;
为什么D选项不正确,格式中的数字有什么特殊含义吗?