I just answered a similar question this week. You can see the answer here.
However, I would caution that dumping data to a flat file is not a backup strategy that I would employ. I just cannot image a scenario where comma-delimited files would play a role in my backup and recovery strategy of my Oracle database. How do you recover the contents of your control file? How do you recover changes to that data since that backup was made? How do you recover your indexes, sequences, stored procedures and other database objects? You cannot recover any of these with a comma-delimited file.
Dig Deeper on Oracle database backup and recovery
Related Q&A from Brian Peasland
Oracle expert Brian Peasland answers one reader's question about common pitfalls when connecting Oracle to outside programs.continue reading
One reader asks expert Brian Peasland a question about datafile sizes with the Oracle RMAN duplicate 10g command.continue reading
Managing parent table-child table relations in Oracle SQL environments is key to efficient programming.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.