title: Update statement running for too long or not
body: <p>I'm new to working with this much data (20 million rows) and I don't know what I should expect as far as query duration:</p>
  
  <pre><code>update table set field = '1234'  
  </code></pre>
  
  <p>No index on field.  This statement took 25 minutes.  The database is set to Simple Recovery.  Does 25 minutes seem too long?  Table has 9 columns with small data types &lt;50 varchar.</p>