title: Outputting a Joined Table
body: <p>I am currently trying to output a joined table.</p>
  
  <p>The two joined tables consist of the <code>Customer</code> table:</p>
  
  <p><a href="https://i.stack.imgur.com/Yokox.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Yokox.png" alt="enter image description here"></a></p>
  
  <p>as well as the <code>Address</code> table:</p>
  
  <p><a href="https://i.stack.imgur.com/fCv2z.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/fCv2z.png" alt="enter image description here"></a></p>
  
  <p>However I am getting this error:</p>
  
  <blockquote>
    <p>Notice: Undefined index: Street</p>
  </blockquote>
  
  <p>This error is happening for every joined index from the <code>Address</code> table (so it's also happening for <code>Postcode</code> <code>City</code> and <code>Country</code> as well).</p>
  
  <p>My question is how do I fix this?</p>