ETL vs. ELT: A thorough examination of both gets closer including trade-offs and practical uses
Keywords:
Data Integration, Fintech, Data Quality, Data MigrationAbstract
Two essential data integrations approaches are ETL (Extract, Transform, Load) & ELT (Extract, Load, Transform), each of them which is appropriates for a certain set of requirements. ETL entails removing data &converting it into a format that can be used then putting it into a data warehouses. It is the preferred option for sectors like banking & also healthcare that needs high data integrity since it is perfect for structured data that has to be thoroughly cleaned & validated before being stored. ELT reverses the procedures by converting data after it has been loaded into a data warehouses. This method is ideal for managing the massive amounts of raw data & facilitating the flexible analytics as it make uses of contemporary cloud-based warehouses with the scalable processing capabilities. This comparison draws attention & the differences between ELT's speed & flexibility and ETL's accuracy & data integrity. Employ examples from the retail, healthcare & finance industries demonstrate how companies employs ELT for a quick, scalable insights & ETL for curated datasets. Organizations may choose the best part of approach to improve performances and streamline their data operations by being aware of these trade-offs.
References
1. Waas, F., Wrembel, R., Freudenreich, T., Thiele, M., Koncilia, C., & Furtado, P. (2013). On-demand ELT architecture for right-time BI: extending the vision. International Journal of Data Warehousing and Mining (IJDWM), 9(2), 21-38.
2. Kakish, K., & Kraft, T. A. (2012). ETL evolution for real-time data warehousing. In Proceedings of the Conference on Information Systems Applied Research ISSN (Vol. 2167, p. 1508).
3. Azaiez, N., & Akaichi, J. (2017, February). Override Traditional Decision Support Systems-How Trajectory ELT Processes Modeling Improves Decision Making?. In International Conference on Model-Driven Engineering and Software Development (Vol. 2, pp. 550-555). SCITEPRESS.
4. Davenport, R. J. (2008). ETL vs ELT a subjective view. Insource Commercial aspects of BI whitepaper.
5. Powell, B. (2018). Mastering Microsoft Power BI: expert techniques for effective data analytics and business intelligence. Packt Publishing Ltd.
6. Thakurdesai, H. (2016). Establishing an Efficient and Cost-Effective Infrastructure for Small and Medium Enterprises to Drive Data Science Projects from Prototype to Production. Global journal of Business and Integral Security.
7. Vassiliadis, P., & Simitsis, A. (2008). Near real time ETL. In New trends in data warehousing and data analysis (pp. 1-31). Boston, MA: Springer US.
8. Diouf, P. S., Boly, A., & Ndiaye, S. (2018, May). Variety of data in the ETL processes in the cloud: State of the art. In 2018 IEEE International Conference on Innovative Research and Development (ICIRD) (pp. 1-5). IEEE.
9. Morgan, A., Amend, A., George, D., & Hallett, M. (2017). Mastering spark for data science. Packt Publishing Ltd.
10. Guo, S. S., Yuan, Z. M., Sun, A. B., & Yue, Q. (2015). A new ETL approach based on data virtualization. Journal of Computer Science and Technology, 30, 311-323.
11. Pal, S. (2016). SQL on Big Data: Technology, Architecture, and Innovation. Apress.
12. Venner, J., Wadkar, S., & Siddalingaiah, M. (2014). Pro apache hadoop. Apress.
13. Zacek, J., & Hunka, F. (2014). Data warehouse minimization with ELT fuzzy filter. Advances in Information Science and Applications, 2, 450-454.
14. Freudenreich, T., Furtado, P., Koncilia, C., Thiele, M., Waas, F., & Wrembel, R. (2013). An on-demand ELT architecture for real-time BI. In Enabling Real-Time Business Intelligence: 6th International Workshop, BIRTE 2012, Held at the 38th International Conference on Very Large Databases, VLDB 2012, Istanbul, Turkey, August 27, 2012, Revised Selected Papers 6 (pp. 50-59). Springer Berlin Heidelberg.
15. Mukherjee, R., & Kar, P. (2017, January). A comparative review of data warehousing ETL tools with new trends and industry insight. In 2017 IEEE 7th International Advance Computing Conference (IACC) (pp. 943-948). IEEE.
16. Gade, K. R. (2017). Integrations: ETL vs. ELT: Comparative analysis and best practices. Innovative Computer Sciences Journal, 3(1).
17. Gade, K. R. (2017). Integrations: ETL/ELT, Data Integration Challenges, Integration Patterns. Innovative Computer Sciences Journal, 3(1).
Published
Issue
Section
License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.