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POC# or SQL for most efficient solution
 

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    <p>I have a questionaire; there are no right or wrong answers, simply "expert, intermediate, beginner" which have values 3,2,1.</p> <p>The questions are split up into various groups, i.e. math, geography, etc. I have built a "content management system" that will allow the administrator to add groups as well as questions for each group, therefore I have an unknown number of questions and groups.</p> <p>I tried and tried to write SQL to loop through the input but had no success. The only way I found to do it is in C# as follows;</p> <pre><code>logonName = Session["user"].ToString(); foreach (GridViewRow gvr in GridView1.Rows) { var rb = gvr.FindControl("answers_list") as RadioButtonList; var quest = rb.SelectedValue; if (quest == "") { quest = "0"; } var questId = GridView1.DataKeys[gvr.RowIndex].Values[0].ToString(); var gpId = GridView1.DataKeys[gvr.RowIndex].Values[1].ToString(); int questionId = Convert.ToInt32(questId); int groupId = Convert.ToInt32(gpId); int question = Convert.ToInt32(quest); var objDB01 = new dbconn(); const string strSQL = "insertResults"; objDB01.objCommand.Parameters.AddWithValue("@userId", logonName); objDB01.objCommand.Parameters.AddWithValue("@groupId", groupId); objDB01.objCommand.Parameters.AddWithValue("@questionId", questionId); objDB01.objCommand.Parameters.AddWithValue("@answer", question); try { objDB01.GetNonQuery(strSQL); } finally { objDB01.Dispose(); } } </code></pre> <p>Is there a more efficient way to do this? What kind of stress is this putting on the server as once this is rolled out, there could be hundred of users answering hundreds of questions simultaneously?</p>
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    1. USemre nevayeshirazi
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    1. COWithout seeing your SQL query(s) and the tables used it's a bit hard to speculate. Maybe you could add more detail then flag to re-open.
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    2. COHow do I re-open a question? I am simply asking if looping through the above code dozens of times, opening and closing the database connection each time is poor programming. I am interested in the comments on LINQ as I have not used that, working in an environment where it was .Net2 going straight to .Net4 without the benefit of LINQ.
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    3. COThe problem is 1. You don't tell us enough about the data (show us your tables) 2. You don't tell us what the SQL queries look like 3. You don't tell us how many rows get returned and are processed in that loop. That's what you need to expand on before anyone can have a chance at answering without guessing if what you're doing is worth optimising. The devil is in the detail when it comes to asking questions here.
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