SQL，使用主查询的结果生成子查询

我试图在视图中添加一列。此列使用以前的结果计算新值

但是，似乎不可能将主查询的结果用于子查询

为了简化问题，它将给出：

   SELECT DISTINCT Operation, Invoice, Corrective, 
   TestNumber = ( SELECT DISTINCT Operation, Invoice 
                   FROM Tab1
                   WHERE Operation = Tab1.Corrective)
   FROM Tab1

但是，它不起作用

如果我写了以下内容，它会起作用：

    SELECT DISTINCT Operation, Invoice, Corrective, 
    TestNumber = ( SELECT DISTINCT Operation, Invoice 
                   FROM Tab1
                   WHERE Operation = 20483)
    FROM Tab1

SQL似乎试图提取条件操作=纠正的所有数字。然而，我真正想要的是获取上一个选项卡更正结果，并将其注入到我的子查询中。我该怎么办

这是真正的代码：

SELECT DISTINCT dbo.Operation.Id AS OperationID, 
                dbo.Invoice.Id AS maxInvoice, 
                dbo.Operation.CorectiveId as Corective,  
                (
                    SELECT Distinct dbo.Invoice.InvoiceNumber
                    FROM dbo.Invoice INNER JOIN
                    dbo.InvoiceClient ON dbo.Invoice.Id = dbo.InvoiceClient.InvoiceId 
                    INNER JOIN dbo.InvoiceLine ON dbo.Invoice.Id =  dbo.InvoiceLine.InvoiceId 
                    INNER JOIN dbo.Operation ON dbo.Invoice.OperationId = dbo.Operation.Id
                    INNER JOIN (
                        SELECT dbo.Operation.Id as OperationID, MAX(DISTINCT dbo.Invoice.Id) as MaxInvoice
                        FROM dbo.Invoice 
                        INNER JOIN dbo.InvoiceClient ON dbo.Invoice.Id = dbo.InvoiceClient.InvoiceId 
                        INNER JOIN dbo.InvoiceLine ON dbo.Invoice.Id = dbo.InvoiceLine.InvoiceId 
                        INNER JOIN dbo.Operation ON dbo.Invoice.OperationId = dbo.Operation.Id
                    GROUP BY dbo.Operation.Id) sub1 ON dbo.Invoice.Id = sub1.MaxInvoice 
                                                   AND dbo.Operation.Id = sub1.OperationID

                    WHERE dbo.Operation.Id = dbo.Operation.CorectiveId
                ) as testnumber 
FROM (dbo.Invoice 
INNER JOIN dbo.InvoiceClient ON dbo.Invoice.Id = dbo.InvoiceClient.InvoiceId 
INNER JOIN dbo.InvoiceLine ON dbo.Invoice.Id = dbo.InvoiceLine.InvoiceId 
INNER JOIN dbo.InvoiceLineHistory ON dbo.InvoiceLine.Id = dbo.InvoiceLineHistory.InvoiceLineId 
INNER JOIN dbo.Operation ON dbo.Invoice.OperationId = dbo.Operation.Id
INNER JOIN (
    SELECT dbo.Operation.Id as OperationID, MAX(DISTINCT dbo.Invoice.Id) as MaxInvoice
    FROM dbo.Invoice 
    INNER JOIN dbo.InvoiceClient ON dbo.Invoice.Id = dbo.InvoiceClient.InvoiceId 
    INNER JOIN dbo.InvoiceLine ON dbo.Invoice.Id = dbo.InvoiceLine.InvoiceId 
    INNER JOIN dbo.Operation ON dbo.Invoice.OperationId = dbo.Operation.Id
    GROUP BY dbo.Operation.Id) sub ON dbo.Invoice.Id = sub.MaxInvoice 
                                  AND dbo.Operation.Id = sub.OperationID 
)
ORDER BY dbo.Operation.Id 

---

请尝试以下代码：

  SELECT DISTINCT dbo.Operation.Id AS OperationID,
              dbo.Invoice.Id AS maxInvoice,
              dbo.Operation.CorectiveId AS Corective,
              (SELECT DISTINCT dbo.Invoice.InvoiceNumber
                 FROM dbo.Invoice
                      INNER JOIN dbo.InvoiceClient ON dbo.Invoice.Id = dbo.InvoiceClient.InvoiceId
                      INNER JOIN dbo.InvoiceLine ON dbo.Invoice.Id = dbo.InvoiceLine.InvoiceId
                      INNER JOIN dbo.Operation operation_inner ON dbo.Invoice.OperationId = operation_inner.Id
                      INNER JOIN (  SELECT dbo.Operation.Id AS OperationID, MAX (DISTINCT dbo.Invoice.Id) AS MaxInvoice
                                      FROM dbo.Invoice
                                           INNER JOIN dbo.InvoiceClient ON dbo.Invoice.Id = dbo.InvoiceClient.InvoiceId
                                           INNER JOIN dbo.InvoiceLine ON dbo.Invoice.Id = dbo.InvoiceLine.InvoiceId
                                           INNER JOIN dbo.Operation ON dbo.Invoice.OperationId = dbo.Operation.Id
                                  GROUP BY dbo.Operation.Id) sub1
                          ON dbo.Invoice.Id = sub1.MaxInvoice AND dbo.Operation.Id = sub1.OperationID
                WHERE dbo.Operation.Id = operation_inner.CorectiveId)
                  AS testnumber
FROM (dbo.Invoice
      INNER JOIN dbo.InvoiceClient ON dbo.Invoice.Id = dbo.InvoiceClient.InvoiceId
      INNER JOIN dbo.InvoiceLine ON dbo.Invoice.Id = dbo.InvoiceLine.InvoiceId
      INNER JOIN dbo.InvoiceLineHistory ON dbo.InvoiceLine.Id = dbo.InvoiceLineHistory.InvoiceLineId
      INNER JOIN dbo.Operation operation_outer ON dbo.Invoice.OperationId = operation_outer.Id
      INNER JOIN (  SELECT dbo.Operation.Id AS OperationID, MAX (DISTINCT dbo.Invoice.Id) AS MaxInvoice
                      FROM dbo.Invoice
                           INNER JOIN dbo.InvoiceClient ON dbo.Invoice.Id = dbo.InvoiceClient.InvoiceId
                           INNER JOIN dbo.InvoiceLine ON dbo.Invoice.Id = dbo.InvoiceLine.InvoiceId
                           INNER JOIN dbo.Operation ON dbo.Invoice.OperationId = dbo.Operation.Id
                  GROUP BY dbo.Operation.Id) sub
          ON dbo.Invoice.Id = sub.MaxInvoice AND operation_outer.Id = sub.OperationID)
ORDER BY operation_outer.Id

问题在于区分dbo.Operation表到底是哪一列连接的

例如，当您编写WHERE dbo.Operation.Id=dbo.Operation.corecoctiveId时，它是来自同一个表的列，并且查询已连接在一起（而据我所知，您当时希望将内部查询连接到外部查询）

因此，我给了表别名operation\u inner和operation\u outer，以区分列属于哪个表

---

我希望它能按您的要求工作。

尝试使用公共表表达式什么类型的公共表表达式？基本上您可以查询一个公共表或任意多个公共表。最后，您只需连接而不是子查询。这也应该更有效，因为您可以使用不同的“where”和“disticnt”子句查询相同的结果—您的SQL看起来非常重复和混乱。这将是地狱维持。然而，我认为问题的根源在于你没有使用别名。如果要在外部查询和子查询中使用相同的表，则需要使用别名让数据库区分这两个表。嗨，Zohar，谢谢你的回复。因为我是SQL初学者，所以我不习惯做这种请求。我的主要问题是因为有很多不同的表（使用内部连接）来连接不同的表，我不知道如何命名这些表。用几个“内部联接”来命名整个表似乎是不可能的。你有什么建议吗？谢谢你的帮助，我将重新安排我的代码，因为它真的很混乱。但allias绝对是个好主意。@MiaChen是的，让你的代码不那么凌乱肯定是个好主意：）我保留了你的查询，就像你在这里所说的那样，但我也鼓励你稍微修改一下（可能使用一些，可能会显示为一个好主意）