左外联接匹配

Question

我有以下查询，我对其进行了修改，使其能够在名为Futuredial_Validation的新表中查找，我编写了所有条件和联接，但仍未在该表中查找，仅在一个名为cellscripter的表中，其余的该查询有效，非常感谢您的帮助，谢谢：

SELECT row_number() OVER (ORDER BY wms_us.wms_us.rrno.rrdate, wms_us.wms_us.rrno.pono, wms_us.wms_us.transferboxdet.meidhex, att.Date_cleared) AS ROW_ID,
  wms_us.wms_us.rrno.pono                                                                                                                      AS ATT_PO,
  wms_us.wms_us.rrno.rrdate                                                                                                                    AS Received_Date,
  CASE
    WHEN (wms_us.wms_us.model.modeldesc = 'MIXED')
    THEN wms_us.wms_us.transferboxdet.basemodel
    ELSE wms_us.wms_us.model.modelbase
  END AS Model,
  CASE
    WHEN LEN(wms_us.wms_us.transferboxdet.meidhex) >= 15
    THEN LEFT(wms_us.wms_us.transferboxdet.meidhex, 14)
    ELSE wms_us.wms_us.transferboxdet.meidhex
  END AS IMEI,
  /*Check in Futerdial else obtain the values from cellscripter*/
  CASE
    WHEN (Future.[Error Code] = '1')
    THEN Future.LocalTime
    ELSE att.Date_cleared
  END AS Date_cleared,
  CASE
    WHEN (Future.[Error Code] = '1')
    THEN 'PASS'
    ELSE att.Result
  END AS Result
FROM wms_us.wms_us.transferboxdoc
INNER JOIN wms_us.wms_us.transferboxdet
ON wms_us.wms_us.transferboxdoc.transferboxdocid = wms_us.wms_us.transferboxdet.transferboxdocid
INNER JOIN wms_us.wms_us.rrno
ON wms_us.wms_us.transferboxdet.rrnoid = wms_us.wms_us.rrno.rrnoid
INNER JOIN wms_us.wms_us.model
ON wms_us.wms_us.transferboxdoc.modelid = wms_us.wms_us.model.modelid
LEFT OUTER JOIN Futerdial.dbo.Futuredial_Validation AS Future
ON Future.IMEI = LEFT(wms_us.wms_us.transferboxdet.meidhex, 14)
LEFT OUTER JOIN DRSCSQLQADB01.att_view2.dbo.attview2 AS att
ON att.IMEI                      = LEFT(wms_us.wms_us.transferboxdet.meidhex, 14)
WHERE (wms_us.wms_us.rrno.rrdate > '2016-12-01')

Answer 1

最有可能的是：您的联接规范不起作用，或者[Error Code]的case表达式不正确。

使用以下方法检查是否获得了[Future_imei]和[Error Code]任何值：

select
    row_id = row_number() over (
      order by rrno.rrdate
        , rrno.pono
        , tbdet.meidhex
        , att.Date_cleared)
  , att_po = rrno.pono
  , Received_Date = rrno.rrdate
  , Model=case
      when (m.modeldesc = 'mixed')
        then tbdet.basemodel
      else m.modelbase
      end
  , imei=case
      when len(tbdet.meidhex) >= 15
        then left(tbdet.meidhex, 14)
      else tbdet.meidhex
      end 
  , [Future_imei] = Future.imei
  , Future.[Error Code]
  , Date_cleared=case
      when (Future.[Error Code] = '1')
        then Future.LocalTime
      else att.Date_cleared
      end 
  , [Result]=case
      when (Future.[Error Code] = '1')
        then 'pass'
      else att.Result
      end 
from wms_us.wms_us.transferboxdoc as tbdoc
  inner join wms_us.wms_us.transferboxdet as tbdet
    on tbdoc.transferboxdocid = tbdet.transferboxdocid
  inner join wms_us.wms_us.rrno as rrno
    on tbdet.rrnoid = rrno.rrnoid
  inner join wms_us.wms_us.model as m
    on tbdoc.modelid = m.modelid
  left outer join Futerdial.dbo.Futuredial_Validation as Future
      on Future.imei = left(tbdet.meidhex, 14)
  left outer join drscsqlqadb01.att_view2.dbo.attview2 as att
      on att.imei = left(tbdet.meidhex, 14)
  where (rrno.rrdate > '2016-12-01')