从SQL获取Linq查询

Question

I am trying to get the Linq query from the SQL query. The sql query is:

Select * from EMP where Salary = (Select Max(Salary) from EMP)

I have created a Linq query, but it doesn't work at all:

var result = emps.where(emp => emp.Salary == emps.Max(emp.sal));

How should I solve this problem?

Answer 1

Try this:

var maxsal = emps.Max(emp => emp.sal);
var result = emps.Where(e => e.sal == maxsal);

Answer 2

Assuming that you want to do it as a single linq query, I think this will do what you're after:

var result = emps
    .Select(e => new { Emp = e, Max = emps.Max(_ => _.Salary)})
    .Where(e => e.Max == e.Emp.Salary)
    .Select(e => e.Emp);

** Update ** You can actually do that in the single statement:

var result = emps
    .Where(e => emps.Max(_ => _.Salary) == e.Salary);

Was there something else wrong with your original scenario?