title: Difference between count(*) and count(true) in sql?
body: <p>what is the difference between the <code>select count(*)</code> and <code>select count(true)</code>?
  so is there any different between the <code>count(*)</code> and <code>count(true)</code> which one should I use?
  can you give me situation example for each one that is better option to choose?</p>