title: TSQL: update a column to null
body: <p>A learner here. This has to be esasy but I cannot figure it out. </p>
  
  <p>I have a table like this: </p>
  
  <pre><code>ID -- NAME -- CHOICE
  1 -- John -- book
  2 -- Matt -- pen
  3 -- Linda -- bag
  .
  .
  </code></pre>
  
  <p>What would be the script to turn all the data in column CHOICE to null? </p>
  
  <p>Thanks a ton</p>