SQL判断服务器时间是否在数据表的时间段内

//判断服务器时间是否在数据表的时间段内

2000数据库

方法一：

SELECT *
FROM Y_huiyuanzaizhekou
WHERE (DATEDIFF(d, kaishiriqi, GETDATE()) >= 0) AND (zhixingflag = '是') AND
      (DATEDIFF(d, GETDATE(), jieshuriqi) >= 0)

方法二：

SELECT *
FROM Y_huiyuanzaizhekou
WHERE (GETDATE() BETWEEN CONVERT(datetime, kaishiriqi, 20) AND CONVERT(datetime,
      jieshuriqi, 20))