title: What is the error "Every derived table must have its own alias" in MySQL?
body: <p>I am running this query on MySQL</p>
  
  <pre><code>SELECT ID FROM (
      SELECT ID, msisdn
      FROM (
          SELECT * FROM TT2
      )
  );
  </code></pre>
  
  <p>and it is giving this error:</p>
  
  <blockquote>
    <p>Every derived table must have its own alias. </p>
  </blockquote>
  
  <p>What's causing this error?</p>