Question

我正在处理SQL查询而且我被困住了。

查询结果应包含以下列：

ItemCode（唯一项目编号）
LatestReceiptDate（ItemCode的最新收据日期）
LatestIssueDate（ItemCode的最新发布日期）

我试图在主查询中使用子查询，但结果我在LatestIssueDate和LatestReceiptdate

的每一行都得到相同的日期

喜欢这个......

Select Distinct 
    I.ItemCode, 
    LatestReceiptDate = (Select top 1 (MH.MoveDate) 
                         from inItem as I 
                         left join InMoveLn as ML on I.ItemID = ML.ItemID 
                         inner join InMoveHd as MH on ML.InvMoveID = MH.InvMoveID 
                         where Mh.transactiontypeID like '5001' 
                         Order by Itemcode desc),
    LatestIssueDate = (Select  top 1 (MH.MoveDate) 
                       From inItem as I 
                       left join InMoveLn as ML on I.ItemID = ML.ItemID 
                       inner join InMoveHd as MH on ML.InvMoveID = MH.InvMoveID 
                       where Mh.transactiontypeID like 
        '5013' 
                          or Mh.transactiontypeID like '5003' 
                       Order  by ItemCode desc)
from 
    initemstore as S
left join 
    initem as I on I.ItemId = S.ItemID 
left join 
    inMoveLn as ML on ML.ItemID = S.ItemID 
inner join 
     inMoveHd as MH on ML.InvMoveID=MH.InvMoveID
order by 
     I.Itemcode

我花了几个小时，不能再继续了。我将不胜感激任何帮助

这是我使用上面的查询

得到的

ItemCode  LatestReceiptDate         LatestIssueDate
100001    2011-09-12 15:26:18.000   2015-04-14 09:49:07.627 
100002    2011-09-12 15:26:18.000   2015-04-14 09:49:07.627
100003    2011-09-12 15:26:18.000   2015-04-14 09:49:07.627
100004    2011-09-12 15:26:18.000   2015-04-14 09:49:07.627
100005    2011-09-12 15:26:18.000   2015-04-14 09:49:07.627

Answer 1

您的查询很复杂，并且包含与其他表的连接，结果集中没有字段。假设它是正确的你可以写为：

WITH  lrd ( ItemCode, LatestReceiptDate )
        AS (
             SELECT ItemCode, MAX(MH.MoveDate)
             FROM   inItem AS I
             LEFT JOIN InMoveLn AS ML ON I.ItemID = ML.ItemID
             INNER JOIN InMoveHd AS MH ON ML.InvMoveID = MH.InvMoveID
             WHERE  MH.transactiontypeID LIKE '5001'
             GROUP BY ItemCode
           ),
      lid ( ItemCode, LatestIssueDate )
        AS (
             SELECT ItemCode, MAX(MH.MoveDate)
             FROM   inItem AS I
             LEFT JOIN InMoveLn AS ML ON I.ItemID = ML.ItemID
             INNER JOIN InMoveHd AS MH ON ML.InvMoveID = MH.InvMoveID
             WHERE  MH.transactiontypeID LIKE '5013' OR
                    MH.transactiontypeID LIKE '5003'
             GROUP BY ItemCode
           )
  SELECT 
DISTINCT  I.ItemCode, lrd.LatestReceiptDate, lid.LatestIssueDate
  FROM    initemstore AS S
  LEFT JOIN initem AS I ON I.ItemId = S.ItemID
  LEFT JOIN inMoveLn AS ML ON ML.ItemID = S.ItemID
  INNER JOIN inMoveHd AS MH ON ML.InvMoveID = MH.InvMoveID
  INNER JOIN lrd ON I.ItemCode = lrd.ItemCode
  INNER JOIN lid ON I.ItemCode = lid.ItemCode
  ORDER BY I.Itemcode;

一个查询中有问题的子查询

1 个答案: