What is ETL and why is it important?

Related questions

1. How much does it cost to build a database?
2. What is the difference between a data warehouse and a data mart?
3. What is data mart and its advantages?
4. Why do we use ETL tools?
5. What are the advantages of metadata?
6. What are the types of data mart?
7. What are data warehousing concepts?
8. Is a fact table normalized or denormalized?
9. What is data mart with example?
10. How does a data mart work?

Tags

1. #warehouse
2. #enterprise
3. #historical
4. #provides
5. #business
6. #different
7. #targets
8. #sources
9. #context
10. #hadoop
11. #various
12. #transform