title: More than one maximum value in SQL
body: <p>I need to write a query that searches for a maximum value and if there more items having the same maximum value, it would return them both.
  For example, if I have in my database</p>
  
  <pre><code>Item     Price
  Coffee   2.50
  Tea      2.50
  Cola     1.50
  </code></pre>
  
  <p>it would give Coffee and Tea as an answer.
  Thank you in advance</p>