Sqlserver db restore by vb.net

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SQL-Server-2008

i ma creating and restoring database dynamically but restoring time i got error
Error-->

SQL

RESTORE cannot process database 'Dbname' because it is in use by this session. It is recommended that the master database be used when performing this operation.

RESTORE DATABASE is terminating abnormally.

following my code

VB

Dim sqlnewDbcrecon As SqlConnection = New SqlConnection("Data Source=" & cbServers.SelectedItem.ToString & "; Initial Catalog=" & NewFDb & "; user Id=; password=;")
           Dim rptpath As String
           If ApplicationDeployment.IsNetworkDeployed = True Then
               rptpath = AppDomain.CurrentDomain.BaseDirectory.ToString & "Db\Pharma"
           Else
               rptpath = AppDomain.CurrentDomain.BaseDirectory.ToString
               rptpath = rptpath.Substring(0, rptpath.Length - 10) + "Db\Pharma"
           End If

           FYear = TxtreferDbname.Text & Year(dtpstartfinyear.Text) & Year(dtpEndfinyear.Text)
           Dim Splfyear() As String = FYear.Split("20")

           NewFDb = TxtreferDbname.Text + Splfyear(1).TrimStart("0") + Splfyear(2).TrimStart("0")
                       Dim sqlDbcrecon As SqlConnection = New SqlConnection("Data Source=" & cbServers.SelectedItem.ToString & "; user Id=; password=;")

             Cls.cmdNewfire("CREATE DATABASE " + NewFDb + " ON (NAME = Sales_dat,FILENAME = '" + TxtDbPathname.Text + "\" & NewFDb & ".mdf',SIZE = 10,MAXSIZE = 50,FILEGROWTH = 5)LOG ON( NAME = '" & NewFDb & "_log', FILENAME = '" + TxtDbPathname.Text + "\" & NewFDb & ".ldf',SIZE = 5MB, MAXSIZE = 25MB,FILEGROWTH = 5MB)", sqlnewDbcrecon)
           Dim Oldbnam As String = "Pharma"
           Dim newdbname As String = NewFDb
           Dim sqlnewDbcreconn As SqlConnection = New SqlConnection("Data Source=" & cbServers.SelectedItem.ToString & "; Initial Catalog=" & NewFDb & "; user Id=; password=;")
           Cls.cmdNewfire("RESTORE DATABASE " & newdbname & " FROM DISK = N'D:\Manoj\" & Oldbnam & "' WITH FILE = 1, " &
                  "MOVE 'VBPharma' TO N'D:\Manoj\" & Oldbnam & ".mdf', " &
                  "MOVE 'VBPharma_log' TO N'D:\Manoj\" & Oldbnam & "_Log.ldf', Replace", sqlnewDbcreconn)

class name

VB

Public Function cmdNewfire(ByVal qry As String, ByVal sqlcon As SqlConnection) As String
       Dim sqlcmd As New SqlCommand(qry, sqlcon)
       sqlcon.Open()
       cmdNewfire = sqlcmd.ExecuteNonQuery
       sqlcon.Dispose()
       sqlcmd.Dispose()
   End Function

Posted 23-Dec-13 2:21am

manoj s sherje

Updated 23-Dec-13 2:25am

v5

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Maciej Los 23-Dec-13 8:27am

Where do you execute above code: on sever or on client machine?

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Tejas Vaishnav · Answer 1 · 2013-12-23T02:57:00

I think in your application you are connected to your database like ABC and, in your code your are trying to restore some database backup over the same database ABC, so its not possible because your connection or session is in active mode to ABC database. you can check by closing all the connection to that database and try to run your code again and check weather its working or not.