title: Difference between Columns("A").Select and Columns("A:A").Select
body: <p>I understand that Columns("A:B").Select is used to select both column A and B but I wonder if there's a difference between</p>
  
  <pre><code>Columns("A").Select
  Columns("A:A").Select
  </code></pre>
  
  <p>I have tested both in my code and it looks the same.</p>
  
  <p>Bonus question: Is there a difference in term of compilation time/run time between:</p>
  
  <pre><code>Columns("A").Select
  Range("A1:A10000").Select
  </code></pre>
  
  <p>Thanks and have a good day !</p>