On the other hand, issue here is that poster doesn't even know the difference in between dba_% and user_% systems views therefore until poster starts seriously reading the basic documentation it would be immaterial the amount of effort in supporting him.
Next question would probably be about the difference in between dba_tables and user_tables … get it?
People here volunteers time and effort in helping other people, we can pass the ball but poster has to show himself open and willing to carry it for a few yards getting a hit or two in the process; don’t you think so?
Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.