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This article mainly introduces "how to use SQL Server 2005 stored procedures to achieve IP address attribution query". In daily operation, I believe many people have doubts about how to use SQL Server 2005 stored procedures to achieve IP address attribution query. Xiaobian consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubts of "how to use SQL Server 2005 stored procedures to achieve IP address attribution query". Next, please follow the editor to study!

1. Use C # to do DLL. The code is as follows:

UsingSystem;usingSystem.Collections.Generic;usingSystem.Text;usingSystem.Data.SqlTypes;usingSystem.Data.SqlClient;usingMicrosoft.SqlServer.Server; public classAddrInfo [Microsoft.SqlServer.Server.SqlProcedure] publicstaticvoidgetAddrInfo (SqlStringip,outSqlStringinfo) using (SqlConnectionconnection=newSqlConnection ("contextconnection=true")) / / IP address is converted to numeric string [] tmp=ip.Value.Split (newstring [] {"."}, StringSplitOptions.None); Int64ipn=ToInt (ToBinary (tmp [0]) + ToBinary (tmp [1]) + ToBinary (tmp [2]) + ToBinary (tmp [3])); connection.Open (); SqlCommandcmd=newSqlCommand () Cmd.Connection=connection;cmd.CommandType=System.Data.CommandType.Text;cmd.CommandText= "selectaddr_infofromCZIPwhereipn1=" + ipn.ToString (); SqlDataReaderdr=cmd.ExecuteReader (); using (dr) if (dr.Read ()) info=dr.GetString (0); elseinfo= "";} / INT32 to binary string / privatestaticStringToBinary (stringnum) intpiNumber=Int32.Parse (num); stringstrBinary= ""; intiTmp;doiTmp=piNumber%2;strBinary=iTmp.ToString () + strBinary;piNumberpiNumber=piNumber/2;} while (piNumberroom0) ReturnstrBinary.PadLeft (8 returnstrBinary.PadLeft);} / privatestaticlongToInt (stringpStrBinary) char [] charArr=pStrBinary.ToCharArray (); longiReturnValue=0;intiPow=0;for (inti=0;i)

How to use SQLServer2005 stored procedure to realize IP address attribution query

2. Put the compiled DLL on the server where SQLSERVER2005 resides, assuming that the path is c:\ clr\ ipLib.dll to register the assembly.

CreateASSEMBLY [ipLib] FROM'c:\ clr\ ipLib.dll'

3. Create a stored procedure

CREATEPROCEDUREget_ip_addr_info@ipnvarchar, @ infonvarchar (500) OUTPUTASEXTERNALNAMEipLib.AddrInfo.getAddrInfo

Then you can see a stored procedure called get_ip_addr_info, which is called in the same way as a normal T/SQL stored procedure.

At this point, the study on "how to use SQL Server 2005 stored procedures to achieve IP address attribution query" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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