title: check expiry cards
body: <p>I have a table to stores expiry dates of credit cards, below is the sample schema for table.</p>
  
  <pre><code>ExpiryDate Varchar(10)
  </code></pre>
  
  <p>Sample Data in Table is as follows:-</p>
  
  <pre><code>'08/10'
  '09/11'
  '08/16'
  '10/17'
  </code></pre>
  
  <p>how can i find out if a card's date is expired?</p>