Question

我有这样的查询，

exec sp_executesql N'SELECT 
    [Project2].[C1] AS [C1], 
    [Project2].[C2] AS [C2], 
    [Project2].[C3] AS [C3], 
    [Project2].[ID] AS [ID], 
    [Project2].[C4] AS [C4], 
    [Project2].[C5] AS [C5], 
    [Project2].[C8] AS [C6], 
    [Project2].[ID1] AS [ID1], 
    [Project2].[C6] AS [C7], 
    [Project2].[C7] AS [C8], 
    [Project2].[Title] AS [Title], 
    [Project2].[Status] AS [Status]
    FROM ( SELECT 
        [Extent1].[ID] AS [ID], 
        1 AS [C1], 
        N''DataAccess.Product'' AS [C2], 
        N''ID'' AS [C3], 
        N''Products'' AS [C4], 
        N'''' AS [C5], 
        [Extent2].[ID] AS [ID1], 
        [Extent2].[Title] AS [Title], 
        [Extent2].[Status] AS [Status], 
        CASE WHEN ([Extent2].[ID] IS NULL) THEN CAST(NULL AS varchar(1)) ELSE N''DataAccess.Product'' END AS [C6], 
        CASE WHEN ([Extent2].[ID] IS NULL) THEN CAST(NULL AS varchar(1)) ELSE N''Title,Status,ID'' END AS [C7], 
        CASE WHEN ([Extent2].[ID] IS NULL) THEN CAST(NULL AS int) ELSE 1 END AS [C8]
        FROM  [dbo].[Categories] AS [Extent1]
        LEFT OUTER JOIN [dbo].[Products] AS [Extent2] ON [Extent1].[ID] = [Extent2].[ProductID]
        WHERE ([Extent1].[ClientID] = @p__linq__0) AND ( EXISTS (SELECT 
            1 AS [C1]
            FROM [dbo].[Products] AS [Extent3]
            WHERE ([Extent1].[ID] = [Extent3].[ProductID]) AND (([Extent3].[Status] = (UPPER(N''DELETED''))) OR (([Extent3].[Status] IS NULL) AND (UPPER(N''DELETED'') IS NULL)))
        ))
    )  AS [Project2]
    ORDER BY [Project2].[ID] ASC, [Project2].[C8] ASC',N'@p__linq__0 int',@p__linq__0=23

但它没有根据status = deleted过滤数据集，并返回状态未删除的产品等。

我查看了SQL跟踪，它正在生成类似这样的内容，

tempCoeffV <- lapply(formuleVector, function(s) {   coef(glm(s,data=myData,family=binomial, y=FALSE, model=FALSE))})


formuleVector is a vector of strings like: 
myData[,1]~myData[,2]+myData[,3]+myData[,5]
myData[,1]~myData[,2]+myData[,6]

使用＆＃34; eq＆＃34;是否正确？如果我只想要状态为＆＃34;删除的产品＆＃34;没有别的吗？

修改

我正在使用OData V3，使用带EF的WCF数据服务

Answer 1

我认为问题出在查询中。形成你正在说的东西......

// get me categories
https://example.com/_vti_bin/exampleService/exampleService.svc/Categories?

// where any product is deleted
$filter=Products/any(x:x/Status eq toupper('DELETED'))&

// return the category id, product status and title
$select=ID,Products/Status,Products/Title&
$expand=Products

换句话说，您要删除已删除状态的类别而不是其中的产品。您可以添加第二个过滤器来处理产品过滤，只返回类别及其过滤的产品集。

尝试这样的事情......

https://example.com/_vti_bin/exampleService/exampleService.svc/Categories?
$filter=Products/any(x:x/Status eq toupper('DELETED'))&
$select=ID,Products/Status,Products/Title&
$expand=Products/any(p:p/Status eq toupper('DELETED'))

根据您的情况，最好转换查询...

https://example.com/_vti_bin/exampleService/exampleService.svc/Products?
$filter=Status eq toupper('DELETED')&
$select=Category/ID,Status,Title

...通过提取一组产品及其相关类别ID，您可以获得相同的结果，但可以直接在基本查询上过滤这些产品，而不是更复杂的子集合过滤器。

正如聊天中所讨论的，这确实需要一个有效的OData模型，其中正确定义了产品和类别之间的关系。

OData生成错误的URL或只是我使用错误的关键字

1 个答案: