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What is ETL and why is it necessary. Is it possible to run analytics on at OLTP database? Explain? Why does the data have to
- What is ETL and why is it necessary.
- Is it possible to run analytics on at OLTP database? Explain?
- Why does the data have to be transformed? What is being transformed?
- Explain the difference between full extraction and incremental extraction. Provide an example for each extraction technique.
- What is a flat file and where are flat files used in the ETL process?
- Explain the reasons for or against the use of separate transactional and informational systems.
- Discuss why data warehouses and other OLAP structures are used for staging and analyzing data.
- Explain the layered scalable architecture of data warehouse modeling.
- Explain multidimensional data warehouse models, including star schemas and snowflake schemas.
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AWS Certified Database Study Guide Specialty DBS-C01 Exam
Authors: Matheus Arrais, Rene Martinez Bravet, Leonardo Ciccone, Angie Nobre Cocharero, Erika Kurauchi, Hugo Rozestraten
1st Edition
1119778956, 978-1119778950
