During the ETL process, the task of data integration can inolve: 1. Data normalization. 2. Designing star schema with identification of fact measures. 3. Creating visualisations and dashboards. 4. Developing KPIs and Balanced scorecard. 5. None of the answers are correct. 6. 1 and 2.
Question
During the ETL process, the task of data integration can inolve: 1. Data normalization. 2. Designing star schema with identification of fact measures. 3. Creating visualisations and dashboards. 4. Developing KPIs and Balanced scorecard. 5. None of the answers are correct. 6. 1 and 2.
Solution
The task of data integration during the ETL (Extract, Transform, Load) process can involve:
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Data Normalization: This is the process of structuring a relational database in accordance with a series of so-called normal forms in order to reduce data redundancy and improve data integrity.
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Designing Star Schema with Identification of Fact Measures: A star schema is the simplest form of a dimensional model, in which data is organized into facts and dimensions. A fact is an event that is counted or measured, such as a sale or login. A dimension contains reference information about the fact, such as date, product, or customer.
Therefore, the correct answer is 6. 1 and 2.
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