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嗨我想在我的web api中将TSQL转换为Linq,但我没有得到正确的结果。 我现有的TSQL是:如何获得Linq返回计数作为列上的分组查询
SELECT COUNT(a.Id) as total ,c.Name as classroom
From Attendance a INNER JOIN Classroom c ON a.classroom = c.Id
WHERE DropDate= '20160815'
GROUP BY c.Name
我试图转换为LINQ一直低于:
这是更新LINQ(回答西拉杰·曼苏尔)
var name = (from a in dbContext.attendances
join c in dbContext.classrooms on a.Classroom equals c.Id
let classroom = c.Name
where (a.DropDate == today)
group a.Classroom by c.Name into g
select new
{
classroom = g.Key,
total = g.Count()
});
但问题它是不会带回相同的数据,并为每个教室返回500个总计。如果有人可以请让我知道我在这做什么不正确。
谢谢你做到了。我已在下面更新了我的答案。 – snowflakes74