监测EF和Linq to SQL产生的SQL

using System;
using System.Runtime.CompilerServices;
using System.Linq;
using System.Data;

namespace EntityframeworkSQL
{
class Program
{
static void Main(string[] args)
{

using (CustomerEntities customerEntities = new CustomerEntities())
{
var customerNames = from c in customerEntities.Customers
select c.CustomerName;
string sql = ((System.Data.Objects.ObjectQuery)customerNames).ToTraceString();

Console.WriteLine(sql);

}

}
}
}

using System;
using System.Linq;
using System.Data;

namespace LinqToSQL
{
class Program
{
static void Main(string[] args)
{
using (CustomerDataContext customerContext = new CustomerDataContext())
{
var customerNames = from c in customerContext.Customers
select c.CustomerName;
string sql = customerContext.GetCommand(customerNames).CommandText;

Console.WriteLine(sql);
}
}
}
}