SQL Query显示工单的顺序

Question

首先对不好的主题线抱歉.

编辑:这里的查询重复OrderNumbers我需要查询不重复OrderNumbers编辑:缩短问题,并提供一个更清晰的问题

我有一张表,其中包含已执行的所有工单的记录.有两种类型的订单.安装和故障呼叫.我的查询是查找在安装后30天内发生的所有故障呼叫,并将该故障呼叫(TC)与正确的安装(IN)相匹配.因此,故障呼叫日期必须在安装后发生,但不会超过30天.此外,如果同一帐户有两个安装和两个故障呼叫都在30天内发生,并且它们按顺序发生,结果必须反映出来.我遇到的问题是我得到一个安装订单,匹配两个不同的故障呼叫(TC)和一个与两个不同的安装(IN)匹配的故障呼叫(TC)

在SQL Fiddle的示例中,请密切关注安装订单号1234567810和故障呼叫订单号1234567890,您将看到我遇到的问题. http://sqlfiddle.com/#!3/811df/8

select b.accountnumber,
       MAX(b.scheduleddate) as OriginalDate,
       b.workordernumber as OriginalOrder,
       b.jobtype as OriginalType,
       MIN(a.scheduleddate) as NewDate,
       a.workordernumber as NewOrder,
       a.jobtype as NewType 
from (
      select workordernumber,accountnumber,jobtype,scheduleddate 
      from workorders 
      where jobtype = 'TC'
     ) a join 
     (
       select workordernumber,accountnumber,jobtype,scheduleddate 
       from workorders  
       where jobtype = 'IN'
     ) b
on a.accountnumber = b.accountnumber 
group by b.accountnumber,
         b.scheduleddate,
         b.workordernumber,
         b.jobtype, 
         a.accountnumber,
         a.scheduleddate,
         a.workordernumber,
         a.jobtype
having MIN(a.scheduleddate) > MAX(b.scheduleddate) and 
      DATEDIFF(day,MAX(b.scheduleddate),MIN(a.scheduleddate)) < 31

我正在寻找结果的示例.感谢您在为我指路的过程中提供的任何帮助.

Answer 1

你们实际上非常接近。我意识到您真正想要的是MIN()TC 日期大于该帐号的每个安装日期，只要它们相距 30 天或更短。

因此，实际上您需要按结果集中的安装日期进行分组，但WorkOrderNumber仍不包括 s still。就像是：

SELECT a.AccountNumber, MIN(a.scheduleddate) TCDate, b.scheduleddate INDate
FROM 
    (
        SELECT WorkOrderNumber, ScheduledDate, JobType, AccountNumber
        FROM workorders
        WHERE JobType = 'TC'
    ) a
    INNER JOIN
    (
        SELECT WorkOrderNumber, ScheduledDate, JobType, AccountNumber
        FROM workorders
        WHERE JobType = 'IN'
    ) b
    ON a.AccountNumber = b.AccountNumber
WHERE b.ScheduledDate < a.ScheduledDate
    AND DATEDIFF(DAY, b.ScheduledDate, a.ScheduledDate) <= 30
GROUP BY a.AccountNumber, b.AccountNumber, b.ScheduledDate

这会处理日期和AccountNumbers，但您仍然需要WorkOrderNumbers，因此我将workorders表连接回两次，每种类型一次。

注意：我假设每个工作订单的每个帐号都有唯一的日期。因此，如果您在“2015 年 1 月 1 日”完成了账户 1 的工作订单 1（“TC”），并且在“2015 年 1 月 1 日”完成了账户 1 的工作订单 2（“TC”），那么我可以不保证您WorkOrderNumber的结果集中会有正确的结果。

我的最终查询如下所示：

SELECT 
    aggdata.AccountNumber, inst.workordernumber OriginalWorkOrderNumber, inst.JobType OriginalJobType, inst.ScheduledDate OriginalScheduledDate,
    tc.WorkOrderNumber NewWorkOrderNumber, tc.JobType NewJobType, tc.ScheduledDate NewScheduledDate
FROM (
        SELECT a.AccountNumber, MIN(a.scheduleddate) TCDate, b.scheduleddate INDate
        FROM 
            (
                SELECT WorkOrderNumber, ScheduledDate, JobType, AccountNumber
                FROM workorders
                WHERE JobType = 'TC'
            ) a
            INNER JOIN
            (
                SELECT WorkOrderNumber, ScheduledDate, JobType, AccountNumber
                FROM workorders
                WHERE JobType = 'IN'
            ) b
            ON a.AccountNumber = b.AccountNumber
        WHERE b.ScheduledDate < a.ScheduledDate
            AND DATEDIFF(DAY, b.ScheduledDate, a.ScheduledDate) <= 30
        GROUP BY a.AccountNumber, b.AccountNumber, b.ScheduledDate
    ) aggdata
    LEFT OUTER JOIN workorders tc
    ON aggdata.TCDate = tc.ScheduledDate
        AND aggdata.AccountNumber = tc.AccountNumber
        AND tc.JobType = 'TC'
    LEFT OUTER JOIN workorders inst
    ON aggdata.INDate = inst.ScheduledDate
        AND aggdata.AccountNumber = inst.AccountNumber
        AND inst.JobType = 'IN'