想要一种在ASP中改进我的SQL查询的方法

Question

我只想从Division_Program列中获取最新记录。 “JMSDay”列数据中的数据填充一周中的七天。我使用数组来缩短日期（即星期一至星期日）。 “JMS_UpdateTime”列数据使用以下格式8/4/2013 1:02:12 PM

SELECT top 1 * 
FROM CensusFacility_Records 
WHERE JMSDay = '" & smDateArray (Weekday(date)) & "' 
AND Division_Program ='" & divrec &"' 
order by JMS_UpdateDateTime desc

Answer 1

WITH Census AS
(
    SELECT
     *
    ,ROW_NUMBER() OVER(ORDER BY JMS_UpdateDateTime DESC) AS RowID
    FROM CensusFacility_Records
    WHERE JMSDay = '" & smDateArray (Weekday(date)) & "' 
    AND Division_Program ='" & divrec &"' 
)
SELECT * FROM Census
WHERE RowID=1;