Change ConnectionString when database server is not working

Hello Friends,

Sometime, you might have notice that, your hosting server is working fine but your database is not working due to which you
might be getting error on website and you might be loosing visitor and ranking in website..

This post is regarding that only, you can manage this issue by two database.

You can have two database at different server and you can call this in global.asax

first you can make ping to first database everytime and if its working you can call first server database and
if you find any issue or server is not working then you can switch to second server using below code..

    Dim connStatus As String
        Dim png As New Ping()
        Dim pr As PingReply = png.Send("221.256.357.36")
        connStatus = pr.Status.ToString()
        '--------------------

        If connStatus = "Success" Then
            If ConnString = "OldConnection" Then
                If ConfigurationManager.ConnectionStrings("oldconnection1").ConnectionString <> "" Then
                    ConnObj = New SqlConnection(ConfigurationManager.ConnectionStrings("oldconnection1").ConnectionString)
                Else
                    Throw New Exception("Connection String is Empty")
                End If
            Else
                If ConfigurationManager.ConnectionStrings("oldconnection2").ConnectionString <> "" Then
                    ConnObj = New SqlConnection(ConfigurationManager.ConnectionStrings("oldconnection2").ConnectionString)
                Else
                    Throw New Exception("Connection String is Empty")
                End If
            End If
        Else
            If ConnString = "newconnection" Then
                If ConfigurationManager.ConnectionStrings("newconnection1").ConnectionString <> "" Then
                    ConnObj = New SqlConnection(ConfigurationManager.ConnectionStrings("newconnection1").ConnectionString)
                Else
                    Throw New Exception("Connection String is Empty")
                End If
            Else
                If ConfigurationManager.ConnectionStrings("newconnection2").ConnectionString <> "" Then
                    ConnObj = New SqlConnection(ConfigurationManager.ConnectionStrings("newconnection2").ConnectionString)
                Else
                    Throw New Exception("Connection String is Empty")
                End If
            End If
        End If

Let me know, if you have any query..

Thanks Hope this post will help you, if yes please put comment below of this page,

Rajesh Singh,

Senior Asp.Net Developer

Email: raj143svmit@gmail.com

e-Procurement Technologies Ltd (India)

www.abcprocure.com