Join sql client to sql server by coding vb.net

Hard to tell what your problem is from this.

Assuming (correct me if I am wrong) you would like to access data on an SQL server from a VB project?

Very primitive example:

Import System.Data.SqlClient 


Sub AccessDatabase

   Dim oSQLConnection As New SqlConnection
   Dim oSQLCommand As SqlCommand
   Dim oSQLDataReader As SqlDataReader

   oSQLConnection = New SqlConnection("Initial Catalog=Database; _
                         User ID=UserID ;Data Source=ServerName;Password=Password)
   oSQLConnection.Open()

   oSQLCommand = New SqlCommand("SELECT * FROM table", oSQLConnection)
   oSQLDataReader = oSQLCommand.ExecuteReader

   etc...

End Sub

Hope this helps but please provide more information if this is not what you needed to know.