title: How to find a place having its GPS coordinates, my GPS coordinates and a radius?
body: <p>I am developing a simple web service strictly connected to a db: the goal is to find a list of places close to me.</p>
  
  <p>My db contains a list of venues: every venue object consists of a unique id, a name, a longitude and a latitude.</p>
  
  <p>The request that arrives to web service consists of my longitude, my latitude and a radius in km.</p>
  
  <p>I want to obtain the list of places located between me and the radius.</p>
  
  <p>Is there a simple way to do this?</p>
  
  <p>So my questions are: is there a specific object to be used in the db that helps me insert GPS coordinates?</p>
  
  <p>And what type of query should I use? (SELECT * FROM venuesList WHERE ???)</p>