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Copy tables between servers with smo - different collation

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Jan 18, 2012

CPOL
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Copy tables between servers with smo - different collation

I struggled to find a way to copy tables with different collation between two servers, with the use of VB.NET and smo. Here's my solution (I've underlined the two lines that I've added, the rest of the code I found on the internet):
	Dim source_server_conn As New ServerConnection("OMNIOSLSSQ006\A1")
        source_server_conn.LoginSecure = False
        source_server_conn.Login = "username"
        source_server_conn.Password = "password"
        Dim source_server As New Server(source_server_conn)

        Dim reciever_server_conn As New ServerConnection("OMNIOSLSSQ001\A2")
        reciever_server_conn.LoginSecure = False
        reciever_server_conn.Login = "username"
        reciever_server_conn.Password = "password"
        Dim reciever_server As New Server(reciever_server_conn)

	' names of the tables involved
        Dim newTable_name As String = "name_of_table_to_copy_to"
        Dim tabell_source_name As String = "name_of_table_to_copy_from"

        Dim db_source As New Database
        db_source = source_server.Databases("from_database")

        Dim db_reciever As New Database
        db_reciever = reciever_server.Databases("to_database")

	' delete table if exists
        If db_reciever.Tables.Contains(newTable_name) Then
            db_reciever.Tables(newTable_name).Drop()
        End If

        Dim newTable As Table = New Table(db_reciever, newTable_name)

        Dim tabell_source As Table = db_source.Tables(tabell_source_name)

	' add columns to new table
        For Each col As Column In tabell_source.Columns
	    ' *** important... this changes collation of smo.table.column 
            ' you copy from, the original table in the database is not changed
            col.Collation = "Danish_Norwegian_CI_AS"
            col.Alter()
	    ' *** end of collation change
            Dim lCol As Column = New Column(newTable, col.Name, col.DataType)
	    ' set collation to new table column
            lCol.Collation = "Danish_Norwegian_CI_AS"
            lCol.Nullable = col.Nullable
            newTable.Columns.Add(lCol)
        Next
        newTable.Create()

        ConnSource = New SqlConnection(Me.ConnSource)
        ConnSource.Open()
        ConnReciever = New SqlConnection(Me.ConnReciever)
        ConnReciever.Open()

        Dim CommandSource As SqlCommand = New SqlCommand("Select * FROM " & tabell_source_name, ConnSource)
        CommandSource.CommandTimeout = 1600

        Dim DataReaderSource As SqlDataReader = CommandSource.ExecuteReader

        Dim BulkCopyReciever As SqlBulkCopy = New SqlClient.SqlBulkCopy(Me.ConnReciever, SqlBulkCopyOptions.KeepIdentity)
        BulkCopyReciever.DestinationTableName = newTable_name
        BulkCopyReciever.BulkCopyTimeout = 1600

        Try
            BulkCopyReciever.WriteToServer(DataReaderSource)
        Catch exSQL As SqlClient.SqlException
            MessageBox.Show(exSQL.ToString, "Bulk Copy Error")
        Catch ex As Exception
            MessageBox.Show(ex.ToString, "Bulk Copy Error - General")
        Finally
            DataReaderSource.Close()
            BulkCopyReciever.Close()
        End Try