title: JSON extract value
body: <p>I have this data in a table:</p>
  <pre><code>{ &quot;keys&quot;: [ &quot;00170000007u8uJ&quot; ] }
  </code></pre>
  <p>I need to extract only the value <code>00170000007u8uJ</code> in a SQL Server 2016 select query.</p>