Oracle Database Discussions

Hi all

I dont work much with databases so my knowledge in Db is limited.

My objective is : to create a safe-backup- copy of exisitng database and work on new copy for modifications.

I have this huge database with some tables having blob columns.

I tried using exp and expdp to export and then imp/impdp the database but i run into issues.
Sometimes some tables are skipped (with blob columns)

I was looking at some clone or duplcate commands that could help me.


What is the easiest way to copy a database?

my purpose is just to keep old copy safe.