Storing Database Results into a Array

How would I go about storing one column in a database in a Array?

And then how would I extract those results from the array?

Or I should say, How would I go about taking one column from a database result and store it into an array.

;)

this?

VB Code:

Dim cn As New SqlConnection()
   Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
      cn.ConnectionString = "user id=sa;password=password;initial catalog=northwind"
      cn.Open()
 
      Dim cm As New SqlCommand("select * from territories", cn)
      Dim dr As SqlDataReader = cm.ExecuteReader
      Dim a As New ArrayList()
      While dr.Read
         a.Add(dr(1)) ' second column
      End While
 
      Dim s As String
      Dim s2 As String
      For Each s In a
         s2 &= s & Constants.vbCrLf
      Next
      MessageBox.Show(s2)
 
   End Sub