title: SQL get just one column from the max value
body: <p>I have this table</p>
  <pre><code>| sale_id | amount |
  | ------- | ------ |
  | 5       | 3      |
  | 1       | 2      |
  | 3       | 1      |
  </code></pre>
  <p>And i need select JUST the sale_id of the max amount, just the number id 5 because 3 is the max amount. Sounds simple, but im having problems with this.</p>
  <p>Can someone help me, please?</p>