title: How to analyze SQL statement execution time fluctuation?
body: <p>I know this question is not easy to give an actual answer, but I met it sometimes, SQL execution time is high but cannot reproduce 100%, actually very casually.</p>
  
  <p>here, I just want to get the general way to how to find the root cause, which aspects should I pay more attention to? and please note 1 point, I was doing it on HANA DB (from SAP).</p>
  
  <p>Thanks!</p>