將SQL轉換爲LINQ查詢

Question

您好我是LINQ的新手，需要將以下SQL轉換爲LINQ。 有人可以幫我寫一下嗎？

select emp.id, emp.name from employee emp 
left join department dept on dept.id = emp.deptid 
and (emp.managerid = '001' or (emp.manager in (select managerid from manager where location Contains('l001','l002','l003') and state =1))) 

感謝

Answer 1

也許是這樣的：

var locationIds = new List<string> {"l001", "l002", "l003"}; 
var ls=(
    from emp in db.employee 
    from dept in db.department 
     .Where(a=>a.id == emp.deptid).DefaultIfEmpty() 
    where (emp.managerid == "001" 
     || db.manager.Where(w=>locationIds.Contains(w.location) && w.state == 1) 
        .Select(s=>s.managerid).Contains(emp.manager)) 
    select new 
     { 
      emp.id, 
      emp.name 
     } 
).ToList(); 

其中db是將預期的這個查詢做LINQ數據上下文