Question

您好我需要简化一个选择查询，该查询将产生108个结果的数组。

当前查询如下所示：

SELECT (
    SELECT ISNULL(Sum(Dollars), 0)
    FROM TableX
    WHERE Column3 = 1
        AND eventdate BETWEEN @start
            AND @end
        AND datepart(mm, eventdate) = 1
    )

第3列值：1, 4, 3, 14, 17, 10, 9, 13, 6

基本上...... 1-1，1-2，1-3到1-12然后4-1，4-2，4-3到4-12等等。

因为我对这些内容不熟悉，我只是复制并粘贴代码并调整了值，但它现在是一个25,000个字符的查询，这太长了。

非常感谢任何有关如何循环这些内容的帮助或指示。

由于

CREATE VIEW TableX (UNIQUEID,FILEKEY,EVENTDATE,GROUP1,GROUP2,GROUP3,PDN,RATE,HOURS,DOLLARS) AS
SELECT 167278 AS UNIQUEID,1 AS FILEKEY,'2014-07-21 00:00:00.000' AS EVENTDATE,1 AS GROUP1,2 AS GROUP2,1 AS GROUP3,14 AS PDN,0 AS RATE,3 AS HOURS,0 AS DOLLARS
UNION ALL
SELECT 167277,1,'2014-07-24 00:00:00.000',1,2,1,1,5,1,5
UNION ALL
SELECT 167276,1,'2014-07-25 00:00:00.000',1,4,1,1,5,1,5
UNION ALL
SELECT 167269,1,'2014-07-07 00:00:00.000',1,2,1,1,5,8,40
UNION ALL
SELECT 167007,1,'2014-07-04 00:00:00.000',1,1,1,4,1,8,8
UNION ALL
SELECT 167006,1,'2014-07-06 00:00:00.000',1,1,1,1,1,1,1
UNION ALL
SELECT 166932,1,'2014-05-26 00:00:00.000',1,1,1,4,1,8,8
UNION ALL
SELECT 166904,1,'2013-12-25 00:00:00.000',1,1,1,4,18.25,8,146
UNION ALL
SELECT 166903,1,'2014-01-01 00:00:00.000',1,1,1,4,18.25,8,146
UNION ALL
SELECT 166902,1,'2013-11-28 00:00:00.000',1,1,1,4,18.25,8,146;

Answer 1

这可能符合您的需求：

  select column3
       , datepart(mm, eventdate) monthNum
       , isnull(sum(dollars)) dollarSum
    from tablex
   where eventDate between @start and @end
group by column3, 
         datepart(mm, eventdate) monthNum

话虽如此，选择月份而不是年份并不是一个好主意。

如何简化选择查询

1 个答案: