title: Oracle - difference or changes between two rows from two tables
body: <p>I have two tables both have same schema, one will have previous day records other will have current. I want to compare both and find only changes or only rows that have different value in atleast one column. </p>
  
  <p>How is this possible in pl/sql, oracle? 
  (I did code something similar using checksum in T-SQL but not sure how to do in pl/sql)</p>