title: How can I add a character into a specified position into string in SQL SERVER?
body: <p>I have a varchar field like:</p>
  
  <pre><code>195500
  122222200
  </code></pre>
  
  <p>I need to change these values to:</p>
  
  <pre><code>1955.00
  1222222.00
  </code></pre>