Question

我搜索了以前的帖子，但找不到所需的答案。我希望每30小时间隔24小时，例如

开始= 00：30、01：00、01：30、02：00等结束-24:00

如果可以的话，请指出正确的方向。可以使用Web Intelligence查询中的自定义查询脚本来完成此操作吗？

谢谢

Answer 1

我不确定如何在WebI中本地执行此操作，但是您当然可以在徒手的SQL查询中蛮力执行此操作。我正在使用的数据库是SQL Server。您的SQL语法可能会有所不同，具体取决于您的数据库平台。

最简单的方法是一堆工会...

SELECT '00:30' AS TimeInterval
UNION SELECT '01:00'
UNION SELECT '01:30'
UNION SELECT '02:00'
UNION SELECT '02:30'
UNION SELECT '03:00'
UNION SELECT '03:30'
UNION SELECT '04:00'
UNION SELECT '04:30'
UNION SELECT '05:00'
UNION SELECT '05:30'
UNION SELECT '06:00'
UNION SELECT '06:30'
UNION SELECT '07:00'
UNION SELECT '07:30'
UNION SELECT '08:00'
UNION SELECT '08:30'
UNION SELECT '09:00'
UNION SELECT '09:30'
UNION SELECT '10:00'
UNION SELECT '10:30'
UNION SELECT '11:00'
UNION SELECT '11:30'
UNION SELECT '12:00'
UNION SELECT '12:30'
UNION SELECT '13:00'
UNION SELECT '13:30'
UNION SELECT '14:00'
UNION SELECT '14:30'
UNION SELECT '15:00'
UNION SELECT '15:30'
UNION SELECT '16:00'
UNION SELECT '16:30'
UNION SELECT '17:00'
UNION SELECT '17:30'
UNION SELECT '18:00'
UNION SELECT '18:30'
UNION SELECT '19:00'
UNION SELECT '19:30'
UNION SELECT '20:00'
UNION SELECT '20:30'
UNION SELECT '21:00'
UNION SELECT '21:30'
UNION SELECT '22:00'
UNION SELECT '22:30'
UNION SELECT '23:00'
UNION SELECT '23:30'
UNION SELECT '24:00'

这是使用CTE的更优雅的方法...

DECLARE @startnum INT = 1;
DECLARE @endnum INT = 48;
WITH cte AS
(
    SELECT @startnum AS num
    UNION ALL
    SELECT num + 1 FROM cte WHERE num + 1 <= @endnum
)
SELECT CASE
           WHEN num < 48 THEN
                -- Here is the logical progression working from the inside out
                -- 1. convert GETDATE() to a DATE to get rid of the time
                -- 2. convert the result of #1 back to a DATETIME
                -- 3. add the appropriate number of minutes
                -- 4. convert to VARCHAR(5) style of 8 to get hh:mi
               CONVERT(VARCHAR(5), DATEADD(MINUTE, num * 30, CONVERT(DATETIME, CONVERT(DATE, GETDATE()))), 8)
           ELSE
               '24:00'
       END AS TimeInterval
FROM   cte;

希望您可以为您完成其中一项工作。

24小时，间隔30分钟

1 个答案: