SQL DataReader network usage limit

问题

I have such an idea (don't know bad or good). I have utility, which connects by reglament to SQL server and fetches some data to application. Data is simple (2 varchar text attributes), but count of data is ~ 3 millions rows. So, my application uses network very intensively. Can I programmatically decrease (limit, throttling, etc...) the network bandwidth usage by SQL DataReader? Let it work more slowly, but not stress nither server nor client. Is this idea good? If not, what I have to do so?

Here is code, so far:

using (SqlConnection con = new SqlConnection("My connection string here"))
{
    con.Open();
    using (SqlCommand command = new SqlCommand(query, con))
    {                        
        using (SqlDataReader reader = command.ExecuteReader())
        {
            while (reader.Read())
            {
                yield return new MyDBObject()
                {                               
                    Date = (DateTime)reader["close_date"],                                
                    JsonResult = (string)reader["json_result"]
                };
            }
        }
    }
}

回答1:

Making the server buffer data or hold an open query longer could actually be significantly increasing load on the server, but ultimately the only way to do what you're after would be to apply "paging" to your query, and access the data in successive pages, perhaps with pauses between pages. The pages could still be pretty big - 100k for example. You can achieve this relatively easily with OFFSET/FETCH in SQL Server.

来源：https://stackoverflow.com/questions/47411338/sql-datareader-network-usage-limit