title: What is the difference between := and = in Oracle PL/SQL
body: <p>I want to know in Oracle PL/SQL,</p>
  
  <p>= can be used for Boolean comparison, can it be used for assignment as well?</p>
  
  <p>While is := used for variable initialization, can it be used for assignment too?</p>
  
  <p>Then, so what is the difference between the use of 2?</p>
  
  <p>Thanks!</p>