Question

我在SSRS中创建报告，该报告应显示一个月内的活动持续时间。该报告应该每个日历月分别进行12次。目前，我的选择有12个硬编码选择，每个月每个月。如何使用一个选择重复12次并且只是迭代的开始和结束时间，使用SQL语言（适用于视图）或者甚至更好地使用SSRS？谢谢。

SELECT DATEDIFF(mi, '2014-01-01 00:00:00.000', end_date) AS total_event
    FROM MY_TABLE
    WHERE (start_date <= '2014-01-01 00:00:00.000') AND (end_date BETWEEN '2014-01-01 00:00:00.000' AND '2014-02-01 00:00:00.000')

    UNION ALL

    SELECT DATEDIFF(mi, start_date, '2014-02-01 00:00:00.000') AS total_event
    FROM MY_TABLE
    WHERE (end_date >= '2014-02-01 00:00:00.000') AND (start_date BETWEEN '2014-01-01 00:00:00.000' AND '2014-02-01 00:00:00.000')

    UNION ALL

    SELECT DATEDIFF(mi, '2014-01-01 00:00:00.000', '2014-02-01 00:00:00.000') AS total_event
    FROM MY_TABLE
    WHERE (start_date <= '2014-01-01 00:00:00.000') AND (end_date >= '2014-02-01 00:00:00.000')

    UNION ALL

    SELECT DATEDIFF(mi, start_date, end_date) AS total_event
    FROM MY_TABLE
    WHERE (start_date BETWEEN '2014-01-01 00:00:00.000' AND '2014-02-01 00:00:00.000') AND (end_date BETWEEN '2014-01-01 00:00:00.000' AND '2014-02-01 00:00:00.000')

Answer 1

尝试使用以下脚本

declare @start datetime
declare @end datetime

set @start = '2014-01-01'  --firstDay year
set @end = '2014-12-31'    --last Day of year

;with cte as
(
select @start firstday, DATEADD(s,-1,DATEADD(mm, DATEDIFF(m,0,DATEADD(month, DATEDIFF(month, 0, @start), 0))+1,0)) lastday,  1 MM
union all
select DATEADD(month, DATEDIFF(month, 0, lastday + 1), 0) , DATEADD(s,-1,DATEADD(mm, DATEDIFF(m,0,DATEADD(month, DATEDIFF(month, 0, lastday + 1), 0))+1,0)),  MM + 1
from cte
where lastday < @end
)
SELECT * FROM CTE C   
--LEFT OUTER JOIN MY_TABLE M ON (M.start_date <= firstday) AND (end_date BETWEEN firstday AND lastday)

只是取消评论最后一行

--LEFT OUTER JOIN MY_TABLE M ON (M.start_date <= firstday) AND (end_date BETWEEN firstday AND lastday)

Answer 2

你可以试试这个：

SELECT
    DATEADD(MONTH, DATEDIFF(MONTH, 0, start_date), 0) AS [month], DATEDIFF(MINUTE, DATEADD(MONTH, DATEDIFF(MONTH, 0, start_date), 0), end_date) AS total_event
FROM
    MY_TABLE
WHERE
    YEAR(start_date) = 2014
ORDER BY
    [month];

SSRS循环选择按月

2 个答案: