如何重写下面的SQL查询到LINQ到实体查询？

Question

SELECT COUNT(*) 
FROM dbo.Table WITH (NOLOCK) 
WHERE 
Columnn1 IN (1,2) AND 
Column2 IN 
    (SELECT id FROM dbo.Table2 WHERE id2 = 5 AND id3 = 1) AND 
id4 = 8 

Answer 1

Context.Table.Count<TableObject>(t => t.id4 == 8 && 
             (t.Column1 == 1 || t.Column1 == 2) && 
             Context.Table2.Count<Table2Object>(t2 => t2.id2 == 5 && t2.id3 == 1 && t2.id == t.id) > 0); 

其中TableObject和Table2Object是您命名分别从表和表2的到来，实体。