2 ETL Interview Questions That have Asked Earlier

During interviews, you will face a question on why we need Data Warehouse. The answer to this question, I have shared in two headings.

1. Objective of Data warehousing.

  1. Retain the present customer base
  2. Increase customer base 15% over the next 5 years
  3. Gain market share by 10% in the next 3 years etc
  4. Increase sales by 15% in North division

Also Read: Data warehousing Vs BI Engineer

To accomplish top level business objectives every organization need good data warehousing. You can try online training at low price before you go to next level.

2. Benefits of Data warehousing

  1. Ad-hoc reports
  2. Complex queries
  3. MD analysis
  4. statistical analytics
  5. EIS feed
  6. Data mining

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Author: Srini

Experienced software developer. Skills in Development, Coding, Testing and Debugging. Good Data analytic skills (Data Warehousing and BI). Also skills in Mainframe.