If you don't like having meaningless URL's for your visitors (i.e index.aspx?id=3&pid=3932), consider URL Re-writing. With URL rewriting, you can store all your content in the database while having user-friendly URL's. Here's a code snippet to do just this:

void Application_BeginRequest(Object sender, EventArgs e) 
{
 String strCurrentPath;
 String strCustomPath;
 strCurrentPath = Request.Path;
 strCurrentPath = strCurrentPath.ToLower();
 // the URL contains this folder name
 if (strCurrentPath.IndexOf( "/SomeSubFolder/" ) > -1) 
 {
  strCustomPath = "getContent.aspx?id=" + 
Path.GetFileNameWithoutExtension( strCurrentPath );
  
  // rewrite the URL
  Context.RewritePath( strCustomPath );
 }
}

The getContent.aspx will take the page name as a parameter and do a lookup in the database and return the content for the page.  I have left the details out because the point of the code snippet is to show how to rewrite the URL and get the data from the database.

Reference: