title: How can I check if all rows have the same column value?
body: <p>Here's the simple query:</p>
  
  <pre><code>SELECT status FROM tbl_pedidos_produtos WHERE status = 4;
  </code></pre>
  
  <p>This, obviously, brings me only the entries whose status equals to 4, but in this manner I can't test if ALL entries have status 4. How can I do something like this?</p>
  
  <pre><code>SELECT status FROM tbl_pedidos_produtos WHERE status OF ALL = 4;
  </code></pre>