Question

我正在尝试在SQL Server中内部连接两个表。我有一个sintax错误，我相信它与我在第一个表中用于GROUP BY的代码行相关联：

SELECT TOP (10000) MAX (PlanID) AS [PlanID]
  ,MAX (InfoID) AS [InfoID]
  ,MAX (Comp) AS [Comp] 
  ,MAX (CompName) AS [CompName]
  ,MAX (GuidID) AS [GuidID]
  ,MAX (Object) AS [Object]
  ,OrderID
  ,CurrencyShort

  FROM [dbo].[Plant] as Plimp
  WHERE [CompName] NOT LIKE 'BB%'
  and InfoID < 196673
  and InfoID > 185679
  GROUP BY (InfoID)
  order by InfoID desc

  INNER JOIN [dbo].[Order] as Ord
  ON Plimp.InfoID = Ord.InfoID

错误讯息：

第15行，第15行，第1行，第19行关键字＆＃39; INNER＆＃39;附近的语法不正确。

第二次尝试：

SELECT TOP (10000) MAX (PlanID) AS [PlanID]
  ,MAX (InfoID) AS [InfoID]
  ,MAX (Comp) AS [Comp] 
  ,MAX (CompName) AS [CompName]
  ,MAX (GuidID) AS [GuidID]
  ,MAX (Object) AS [Object]
  ,OrderID  /*field from [dbo].[Order]*/
  ,CurrencyShort /*field from [dbo].[Order]*/
FROM   [dbo].[PlanningImplant] AS Plimp
    INNER JOIN [dbo].[Order] AS Ord
           ON Plimp.InfoID = Ord.InfoID
WHERE  [CompName] NOT LIKE 'BB%'
   AND Plimp.InfoID < 196673
   AND Plimp.InfoID > 185679
GROUP  BY ( Plimp.InfoID )
ORDER  BY Plimp.InfoID DESC

错误：

Msg 207，Level 16，State 1，Line 15 列名称无效＆＃39; InfoID＆＃39;。 Msg 207，Level 16，State 1，Line 15 列名称无效＆＃39; InfoID＆＃39;。 Msg 207，Level 16，State 1，Line 16 列名称无效＆＃39; CompName＆＃39;。 Msg 207，Level 16，State 1，Line 17 列名称无效＆＃39; InfoID＆＃39;。 Msg 207，Level 16，State 1，Line 18 列名称无效＆＃39; InfoID＆＃39;。 Msg 207，Level 16，State 1，Line 19 列名称无效＆＃39; InfoID＆＃39;。 Msg 209，Level 16，State 1，Line 3 不明确的列名称＆＃39; InfoID＆＃39;。 Msg 207，Level 16，State 1，Line 20 列名称无效＆＃39; InfoID＆＃39;。

注意：＆＃34; [INFOID]＆＃34;列中＆＃34; [dbo]。[植物]＆＃34;最初提供重复项，我在原始表中删除了＆＃34; WHERE [CompName] NOT LIKE＆＃39; BB％＆＃39;＆＃34;。这里的问题是这个条件是在Inner Join之后，但我不能把它放在之前，或者我得到一个错误...也许我应该使用一些括号？

Answer 1

INNER JOIN子句必须在where和group by子句之前出现：

SELECT TOP (10000) MAX (PlanID) AS [PlanID]
  ,MAX (InfoID) AS [InfoID]
  ,MAX (Comp) AS [Comp] 
  ,MAX (CompName) AS [CompName]
  ,MAX (GuidID) AS [GuidID]
  ,MAX (Object) AS [Object]
  ,OrderID
  ,CurrencyShort

  FROM [dbo].[Plant] as Plimp         
  INNER JOIN [dbo].[Order] as Ord
  ON Plimp.InfoID = Ord.InfoID

 WHERE [CompName] NOT LIKE 'BB%'
  and InfoID < 196673
  and InfoID > 185679
  GROUP BY (InfoID)
  order by InfoID desc

Answer 2

Join将在Where和Order by之前到来，所有表格连接将一起出现在From条款中

FROM   [dbo].[Plant] AS Plimp
       INNER JOIN [dbo].[Order] AS Ord
               ON Plimp.InfoID = Ord.InfoID
WHERE  [CompName] NOT LIKE 'BB%'
       AND Ord.InfoID < 196673
       AND Ord.InfoID > 185679
GROUP  BY ( Ord.InfoID )
ORDER  BY Ord.InfoID DESC

SQL Server - 内部联接：语法不正确

2 个答案: