SQL 到 Entity Framework 计数分组

Question

我需要将此 SQL 语句转换为 Linq-Entity 查询...

SELECT name, count(name) FROM people
GROUP by name

Answer 1

查询语法

var query = from p in context.People
            group p by p.name into g
            select new
            {
              name = g.Key,
              count = g.Count()
            };

方法语法

var query = context.People
                   .GroupBy(p => p.name)
                   .Select(g => new { name = g.Key, count = g.Count() });