01.using (SqlConnection connection = new SqlConnection("connection string"))
02.using (SqlCommand command = connection.CreateCommand())
03.{
04. DateTime start = DateTime.Now;
05. DateTime end = start.AddDays(10);
06.
07. StringBuilder sb = new StringBuilder();
08. sb.AppendLine("SELECT A.[id],");
09. sb.AppendLine("A.[timestamp],");
10. sb.AppendLine("A.[Computer_Name],");
11. sb.AppendLine("A.[Packet_Type],");
12. sb.AppendLine("B.[User_Name],");
13. sb.AppendLine("A.[F_Q_User_Name],");
14. sb.AppendLine("A.[Client_Friendly_Name],");
15. sb.AppendLine("B.[Framed_IP_Address],");
16. sb.AppendLine("B.[Calling_Station_Id]");
17. sb.AppendLine("FROM [DBNAME].[dbo].[accounting_data] AS A");
18. sb.AppendLine("INNER JOIN [DBNAME].[dbo].[accounting_data] AS B ON (A.[id]=B.[id]+1)");
19. sb.AppendLine("WHERE A.[Packet_Type] IN (3, 4) AND A.[timestamp] BETWEEN @StartDate AND @EndDate;");
20.
21. command.CommandType = CommandType.Text;
22. command.CommandText = sb.ToString();
23. command.Parameters.AddWithValue("@StartDate", startDate);
24. command.Parameters.AddWithValue("@EndDate", endDate);
25.
26. DataTable dt = new DataTable();
27. using (SqlDataAdapter adapter = new SqlDataAdapter())
28. {
29. adapter.SelectCommand = command;
30. adapter.Fill(dt);
31. }
32.}
