title: How do I use DB2 Explain?
body: <p>How do I use DB2's Explain function? -- both to run it, and to use it to optimize queries. Is there a better tool available for DB2? </p>
  
  <p>I've built queries before, but the only way I've had to tell how long they'd take is to run them and time them -- which is hardly ideal.</p>
  
  <p>Edit: 
  The answer for me turned out to be "You can't. You don't have and cannot get the access." Don't you love bureaucracy? </p>