将LINQ联接查询转换为SQL内联联接查询

Question

我想将LINQ联接转换为简单的SQL内联联接查询。

这是我的LINQ查询。

int CompanyId = Convert.ToInt32(HttpContext.Current.Session["CompanyId"]);

list = (
from p in db.Projects 
join pl in db.ProjectTaskLists on p.ProjectID equals pl.ProjectID 
where pl.IsDeliverable == true && p.CompanyId == CompanyId 
select new { 
                ProjectID = p.ProjectID, 
                ProjectName = p.ProjectName + " - " + p.ProjectCode 
           }
).ToList<object>();

return list;

Answer 1

这等效于SQL：

 select p.ProjectID ProjectID, p.ProjectName + ' - ' + p.ProjectCode as ProjectName
 from
 Projects p join ProjectTaskLists pl
 on p.ProjectID = pl.ProjectID
 where pl.IsDeliverable = true and p.CompanyId = @CompanyId 

其中@CompanyId是一个参数。

Answer 2

这是SQL Normal查询：

select p.ProjectID, p.ProjectName + ' - ' + p.ProjectCode as ProjectName from Projects p
Inner join ProjectTaskLists pl on  pl.ProjectID = p.ProjectID
where pl.IsDeliverable == true && p.CompanyId == @CompanyId