我不明白为什么“它不包含在聚合函数或GROUP BY子句中。”错误

Question

查询;

SELECT  ch.CharID,ch.CharName16, it.OptLevel, obj.ReqLevel1, item.ItemClass  
FROM _Items as it            
LEFT JOIN [dbo].[_Inventory] as inv ON it.ID64 = inv.ItemID   
LEFT JOIN [dbo].[_Char] as ch ON inv.CharID = ch.CharID           
LEFT JOIN [dbo].[_RefObjCommon] as obj ON it.RefItemID = obj.ID           
LEFT JOIN [dbo].[_RefObjItem] as item ON obj.Link = item.ID           
LEFT JOIN [dbo].[_BindingOptionWithItem] as adv ON it.ID64 = adv.nItemDBID            
     WHERE ch.CharName16 IS NOT NULL 
       AND CodeName128 NOT LIKE '%stone%' 
       AND CharName16 NOT LIKE '%]%'
       AND inv.Slot < 7           

查询工作正常，但是；

INSERT INTO ItemPoints (
     CharID
    , CharName16
    , OptLevel
    , ReqLevel1
    , ItemClass
    , TotalPoint
    )
SELECT  CharID
    , CharName16
    , SUM(OptLevel) AS OptLevel
    , SUM(ReqLevel1) AS ReqLevel1
    , SUM(ItemClass) AS ItemClass
    , SUM(OptLevel) + SUM(ReqLevel1) + SUM(ItemClass) AS TotalPoint
FROM (
    SELECT  ch.CharID, ch.CharName16, it.OptLevel, obj.ReqLevel1, item.ItemClass  
      FROM _Items as it            
      LEFT JOIN [dbo].[_Inventory] as inv ON it.ID64 = inv.ItemID   
      LEFT JOIN [dbo].[_Char] as ch ON inv.CharID = ch.CharID           
      LEFT JOIN [dbo].[_RefObjCommon] as obj ON it.RefItemID = obj.ID           
      LEFT JOIN [dbo].[_RefObjItem] as item ON obj.Link = item.ID           
      LEFT JOIN [dbo].[_BindingOptionWithItem] as adv ON it.ID64 = adv.nItemDBID            
     WHERE ch.CharName16 IS NOT NULL 
       AND CodeName128 NOT LIKE '%stone%' 
       AND inv.Slot < 7           
   ) tbl
GROUP BY CharName16

但是sql server给这个错误;

“ tbl.CharID”列在选择列表中无效，因为它既不包含在聚合函数中，也不包含在GROUP BY子句中。

我不明白此错误，该如何解决？

Answer 1

采用..

GROUP BY CharID,CharName16

试一下

    INSERT INTO ItemPoints (
         CharID
        , CharName16
        , OptLevel
        , ReqLevel1
        , ItemClass
        , TotalPoint
        ) SELECT  ch.CharID, ch.CharName16, SUM(it.OptLevel), SUM(obj.ReqLevel1), SUM(item.ItemClass),
(SUM(it.OptLevel)+ SUM(obj.ReqLevel1) + SUM(item.ItemClass) ) total
          FROM _Items as it            
          LEFT JOIN [dbo].[_Inventory] as inv ON it.ID64 = inv.ItemID   
          LEFT JOIN [dbo].[_Char] as ch ON inv.CharID = ch.CharID           
          LEFT JOIN [dbo].[_RefObjCommon] as obj ON it.RefItemID = obj.ID           
          LEFT JOIN [dbo].[_RefObjItem] as item ON obj.Link = item.ID           
          LEFT JOIN [dbo].[_BindingOptionWithItem] as adv ON it.ID64 = adv.nItemDBID            
         WHERE ch.CharName16 IS NOT NULL 
           AND CodeName128 NOT LIKE '%stone%' 
           AND inv.Slot < 7   group By  ch.CharID, ch.CharName16

Answer 2

您必须将所有值添加到group by子句，而select子句中使用的值不带聚合功能，因此group by必须为：

GROUP BY CharID,CharName16