sql - 将 SQL 转换为 Linq - Where、in、Groupby 和拥有计数

Question

如何将此查询从 SQL 写入 LINQ：

SELECT * FROM table
WHERE np in 
(
    SELECT np FROM table
    GROUP BY np 
    HAVING COUNT(np) > 1

Answer 1

像这样的东西：

<Table>.GroupBy(x => x.np)
       .Where(x => x.Count() > 1)
       .SelectMany(x => x)