在不更改代码的情况下，使查询始终方便 将它添加到你的DbContext中，并在visual studio的输出窗口中检查它。

    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        Database.Log = (query)=> Debug.Write(query);
    }

类似于@Matt Nibecker的答案，但有了这个答案，你不必每次需要查询时都将它添加到当前代码中。

有两种方法:

To view the SQL that will be generated, simply call ToTraceString(). You can add it into your watch window and set a breakpoint to see what the query would be at any given point for any LINQ query. You can attach a tracer to your SQL server of choice, which will show you the final query in all its gory detail. In the case of MySQL, the easiest way to trace the queries is simply to tail the query log with tail -f. You can learn more about MySQL's logging facilities in the official documentation. For SQL Server, the easiest way is to use the included SQL Server profiler.

好吧，目前我正在使用Express分析器，缺点是它只适用于MS SQL Server。你可以在这里找到这个工具:https://expressprofiler.codeplex.com/

如果您还想拥有参数值(不仅是@p_linq_0，而且还有它们的值)，您可以使用IDbCommandInterceptor并向ReaderExecuted方法添加一些日志记录。

您可以执行以下操作:

IQueryable query = from x in appEntities
             where x.id == 32
             select x;

var sql = ((System.Data.Objects.ObjectQuery)query).ToTraceString();

或EF6:

var sql = ((System.Data.Entity.Core.Objects.ObjectQuery)query)
            .ToTraceString();

或EF6.3+:

var sql = ((dynamic)flooringStoresProducts).Sql;

这将为您提供生成的SQL。

在EF 4.1中可以执行以下操作:

var result = from x in appEntities
             where x.id = 32
             select x;

System.Diagnostics.Trace.WriteLine(result .ToString());

这将为您提供生成的SQL。