title: Copy int column to another column with positive values
body: <p>I have column a with different int values (positives and negative) i would like to copy values from Column A to B and if a value is negative convert to positive
  the following didn't work</p>
  
  <pre><code>UPDATE myTable SET B = ABS(A);
  </code></pre>
  
  <p>Thank you</p>