C# linq等价于下面的sql是什么？

如何将此sql查询转换为等效的linq？我已经包括了我的模型。我首先使用数据库中的EF代码。我是c#编程新手，所以我可能不知道我的问题中应该包括什么。多谢各位

SELECT        RestaurantFranchiseeEmail.Email
FROM            RestaurantVersions INNER JOIN
                     RestaurantFranchiseeEmail ON 
RestaurantVersions.RestaurantId = RestaurantFranchiseeEmail.RestaurantId
WHERE        (RestaurantVersions.VersionId = N'M1')
GROUP BY RestaurantFranchiseeEmail.Email, RestaurantVersions.VersionId

模型

 namespace 
    {
        using System.ComponentModel.DataAnnotations;

        public class RestaurantVersion
    {
        public int Id { get; set; }

        [StringLength(50)]
        public string RestaurantId { get; set; }

        [StringLength(150)]
        public string Franchisee { get; set; }

        [StringLength(150)]
        public string VersionId { get; set; }
    }
}

   namespace 
    {
        using System.ComponentModel.DataAnnotations;
        using System.ComponentModel.DataAnnotations.Schema;

    [Table("RestaurantFranchiseeEmail")]
    public class RestaurantFranchiseeEmail
    {
        public int Id { get; set; }

        [StringLength(50)]
        public string RestaurantId { get; set; }

        [StringLength(150)]
        public string Franchisee { get; set; }

        [StringLength(150)]
        public string Email { get; set; }
    }
}

请尝试以下代码：

from s in RestaurantVersions 
          join c in RestaurantFranchiseeEmail on s.RestaurantId equals c.RestaurantId
         where c.VersionId == "M1"
           group c by s.Email && c.VersionId
        select c.Email;

---

由于这个问题没有太多细节，我将使用ViewModels根据Entity Framework得出答案：

var result=\u context.RestaurantVersions
.其中（restaurantVersion=>restaurantVersion.VersionId==“M1”）
。选择（restaurantVersion=>new RestaurantVersionViewModel
{
VersionId=restaurantVersion.VersionId，
RestaurantFanchiseeeMailViewModel=新的RestaurantFanchiseeeMailViewModel
{
Email=restaurantVersion.RestaurantFranchiseeEmail.Email
}
})
.GroupBy（restaurantVersionViewModel=>新建
{ 
restaurantVersionViewModel.VersionId，
restaurantVersionViewModel.RestaurantFanchiseeeMailViewModel.Email
})
托利斯先生（）

这是未经测试的，并假设了很多。纯粹的暗中刺杀

编辑：您必须从分组中取出电子邮件

 var  query = from s in RestaurantVersions 
              join q in RestaurantFranchiseeEmail 
              on s.RestaurantId = 
                 q.RestaurantId
              where s.VersionId = N'M1'
              group q by q.Email
              select  q.Email;

我希望这些信息能对你有所帮助 或者您可以查看此链接

---

使用linqpad。它有时会帮助您进行等效的查询，您可以练习查询，并在sqlproblem中查看最终结果。也许使用my会对您有所帮助。谢谢您！