Question

 SELECT [Id]
  ,[Date]
  ,[Condition]
         FROM [CRESULTS]
 where condition = 'abc'

我需要找到hour13的maxvalue和相应的日期，到目前为止我写的查询是有效的，但是还有其他任何改变的想法吗？

  SELECT top 1 max(abs([Hour13])) as hour13,date
  FROM CRESULTS where condition ='a' and Date between '2011-05-16' and '2011-07-10'
    group date
   order by hour13 desc

Answer 1

此处您不需要MAX。

SELECT  TOP 1
        ABS(hour13) AS abs_hour13,
        datefield
FROM    cresults
WHERE   condition = 'a'
        AND datefield BETWEEN '2011-05-16' AND '2011-07-10'
ORDER BY
        abs_hour13 DESC

获取sql server中表中max（hourvalue）的相应日期

1 个答案: