title: What is MDX and what is its use in SAP BPC
body: <p>I would like to know more about "MDX" (Multidimensional Expressions). </p>
  
  <p>What is it? 
  <br />
  What is it used for? 
  <br />Why would you use it?
  <br />Is it better than SQL?
  <br />What is its use in SAP BPS (I haven't seen BPC, just heard that MDX is in it and want to know more)?</p>