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Sql Server选择不同的记录和OrderBy NEWID()_Sql_Sql Server - Fatal编程技术网

Sql Server选择不同的记录和OrderBy NEWID()

Sql Server选择不同的记录和OrderBy NEWID(),sql,sql-server,Sql,Sql Server,这是存储过程,我需要选择不同的记录并以随机顺序显示它们,但我面临一个错误,即选择不同的记录不能与newid()一起使用,因此我如何解决这个问题 USE [OtlobODR] GO /****** Object: StoredProcedure [OtlobFood].[ListOffersItems] Script Date: 11/18/2012 13:01:34 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO ALTE

这是存储过程,我需要选择不同的记录并以随机顺序显示它们,但我面临一个错误,即选择不同的记录不能与newid()一起使用,因此我如何解决这个问题

USE [OtlobODR]
GO
/****** Object:  StoredProcedure [OtlobFood].[ListOffersItems]    Script Date: 11/18/2012 13:01:34 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER procedure [OtlobFood].[ListOffersItems] 
@Fk_CampaignID int
as
select distinct
    CampaignID, CampaignOffers.OldPrice 
    ,   dbo.ItemSizes.IS_Id,
    , dbo.Items.[Item_Description_L2] as Item_Description 
    , dbo.Items.[Item_Image]
    , dbo.Items.[Item_Details]
    , dbo.ItemSizes.[IS_Price] as Price
    -- if null then it is not a featured meal
    , dbo.ProviderItems.[PI_Id] as ProviderItems_PI_ID
    , dbo.ItemCategories.[ItemCat_Id]
    , dbo.Providers.Provider_Name_L2 as Provider_Name
    , dbo.Providers.Provider_Menu_Logo
    , dbo.Providers.Provider_Id
FROM Items  
INNER JOIN ProviderItems ON Items.Item_Id = ProviderItems.Item_Id 
INNER JOIN dbo.ItemSizes ON dbo.Items.Item_Id = dbo.ItemSizes.Item_Id
INNER JOIN CampaignOffers ON CampaignOffers.ItemID = ItemSizes.IS_Id
INNER JOIN dbo.ItemCategories ON dbo.Items.ItemCat_Id = dbo.ItemCategories.ItemCat_Id
INNER JOIN dbo.Providers ON dbo.ProviderItems.Provider_Id = dbo.Providers.Provider_Id 
INNER JOIN dbo.Branches  ON dbo.Providers.Provider_Id = dbo.Branches.Provider_Id 
where Fk_CampaignID=@Fk_CampaignID 
group by  NEWID(),      
    CampaignID, CampaignOffers.OldPrice ,
    dbo.ItemSizes.IS_Id,
    dbo.Items.[Item_Description_L2],
    dbo.Items.[Item_Image], 
    dbo.Items.[Item_Details],
    dbo.ItemSizes.IS_Id,
    dbo.ItemSizes.[IS_Price] ,
    -- if null then it is not a featured meal
    dbo.ProviderItems.[PI_Id] , 
    dbo.ItemCategories.[ItemCat_Id],
      dbo.Providers.Provider_Name_L2,
    dbo.Providers.Provider_Menu_Logo
    ,dbo.Branches.Branch_Id,
    dbo.Providers.Provider_Id,CampaignID,CampaignOffers.OldPrice 
order by NEWID()

这个查询没有多大意义,没有聚合,所以GROUPBY语句的用途是什么?通过NEWID()进行分组并不能得到任何分组


将多余的group by与DISTINCE子句结合起来,感觉更像是有一个连接条件不正确,导致了笛卡尔式,而您正拼命尝试使用distinct和group by来消除笛卡尔式,在语句中同时使用它们显然没有什么意义,并且应该删除group by中的newid。

这个查询没有多大意义,没有聚合,所以group by语句的目的是什么?通过NEWID()进行分组并不能得到任何分组


将多余的group by与DISTINCE子句结合起来,感觉更像是有一个连接条件不正确,导致了笛卡尔式,而您正拼命尝试使用distinct和group by来消除笛卡尔式,在语句中同时使用它们显然没有什么意义,并且应该删除group by中的newid。

您需要将SELECT DISTINCT推入内部查询(此时您也可能会丢失group by),然后在外部查询中执行newid()。一般形式是

select
    newid(), X.*
from
    (
    select distinct <cols>
    from <tables>
    where <whatever>
    ) X
order by 1

您需要将SELECT DISTINCT推入一个内部查询(此时您还可能丢失GROUP BY),然后在外部查询中执行一个NEWID()。一般形式是

select
    newid(), X.*
from
    (
    select distinct <cols>
    from <tables>
    where <whatever>
    ) X
order by 1
从查询中删除NEWID(),并用

SELECT * FROM (
   <your query>
) as t
ORDER BY NEWID()
从中选择*(
)as t
NEWID()命令
从查询中删除NEWID(),并用

SELECT * FROM (
   <your query>
) as t
ORDER BY NEWID()
从中选择*(
)as t
NEWID()命令