如何翻译LINQ表达式到SQL字符串使用C＃代码

Question

如何例如

var query = (from article in ArticleRepository.GetAll() 
      join read in ArticleReadRepository.GetAll() on read.ArticleId equals article.Id 
      where article.Id>10 
      select new 
      { 
       article.Title, 
       read.ReadCount 
      }).ToList(); 

LINQ表达式翻译成SQL字符串

select article.Title, 
     read.ReadCount 
     from ArticleTable as article 
     join ArticleReadTable as read on read.ArticleId = article.Id 
     where article.Id>10 

使用C＃代码

Answer 1

打印query.ToString()和您将看到由LINQ表达形成的查询

例如，

var query = from emp in v.Employees 
      select emp; 
var sqlQuery = query.ToString(); 
Console.WriteLine(sqlQuery); 

结果将是：

SELECT 
[Extent1].[ID] AS [ID], 
[Extent1].[Name] AS [Name] 
FROM [dbo].[Employee] AS [Extent1]