title: SQL Select Radius Search based on Latitude Longitude
body: <p>I got 2 tables:</p>
  
  <pre><code>Events:
   - id
   - name
   - place
  
  Places:
   - id
   - name
   - lat
   - lng
  </code></pre>
  
  <p>I would like to retrieve all events that in <code>10KM radius</code> (based on the place <code>lat</code> &amp; <code>lng</code>) from the <code>current</code> <code>lat</code> and <code>lng</code>. How can I do that?</p>
  
  <p>Thanks! </p>