public static int ExecutesqlCommand(this RelationalDatabase database,string sql)
{
    var connection = database.Connection;
    var command = connection .DbConnection.CreateCommand();
    command.CommandText = sql;

    try
    {
        connection.Open();

        return command.ExecuteNonQuery();
    }
    finally
    {
        connection.Close();
    }
}

像这样用它：

db.Database.AsRelational().ExecutesqlCommand("EXEC MySproc");

请注意,这不会考虑任何活动事务.