System Null and DB NUll : Database NULL « Database ADO.net « VB.Net

1. VB.Net
2. Database ADO.net
3. 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


           
       

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