Question

我想针对一个表编写一个查询，该表为一个故障单的“pm_process_guid”提供唯一值，并在列方式中为“已分配组”，“已分配用户”和“时间”中的所有关联值提供。如何编写查询以获得如下所示的输出？

pm_process_guid Assign Serial Number    Assigned Group  Assigned User              Time
2E2A9A43-9607-4FCB-B3A7-550440823B20    1   APAC    Ram     3/23/2016 15:06
2E2A9A43-9607-4FCB-B3A7-550440823B20    2   AM      Raj     3/23/2016 15:06
2E2A9A43-9607-4FCB-B3A7-550440823B20    3   APAC    Sree    3/23/2016 15:06

我需要得到如下的输出，

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pm_process_guid TotalAssign Count   1st Group   1st User         Time          2nd  Group   2nd User         Time   3rd Group   3rd User         Time
2E2A9A43-9607-4FCB-B3A7-550440823B20    3                   APAC    Ram 3/23/2016             15:06               AM     Raj    3/23/2016      15:06            APAC    Sree    3/23/2016      15:06          
‌‌
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Answer 1

这是关于如何做的示例合成。

SELECT  pm_process_guid,
        count(*),
        [1st User] = MAX(CASE WHEN AssignSerial = 1 THEN AssignUser END),
        [2nd User] = MAX(CASE WHEN AssignSerial = 2 THEN AssignUser END),
        . . . 
FROM    yourtable
GROUP BY pm_process_guid

如何针对一个表创建查询，该表从“pm_process_guid”中提供唯一值

1 个答案: