VB.Net/Database ADO.net/Database NULL

System Null and DB NUll

Public Class MainClass
   Public Shared Sub Main()
       "Strings
        Dim strConstant As String = "ABC"
        Dim strRepeat As New String("A"c, 20)
        Dim strMyString As String = "Hello World"

       strMyString = Nothing
        Dim sysNull As System.DBNull
        If strMyString Is sysNull Then
            strMyString = "Initialize my String"
        End If
        If Not IsDBNull(strMyString) Then
            Console.WriteLine(strMyString)
        End If
        
   End Sub
End Class