Is ETL Testing difficult?

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6. What is ETL tools for Oracle?
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Tags

1. #volume
2. #different
3. #database
4. #hence
5. #always
6. #large
7. #historical
8. #target
9. #testing
10. #makes
11. #faced
12. #warehouse
13. #conventional
14. #system
15. #totally
16. #challenges
17. #contains
18. #other
19. #difficult