Technical

What is surrogate key in data visualisation?

Business Intelligence Engineer

Amazon

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What is surrogate key in data visualisation?
Can you explain what a surrogate key is and why it's used in reporting or dashboards?
What's the purpose of a surrogate key in BI and how does it differ from a natural key?
How have you used surrogate keys in your visualizations or data models?
In your dashboarding work, when would you choose to introduce a surrogate key?
Why are surrogate keys helpful in dimensional modeling or visualizations?
What problems do surrogate keys help avoid in BI dashboards?
How do surrogate keys improve data consistency in reports?
When building reports, what role does a surrogate key typically play?
Can you give a real-world example where a surrogate key was essential?
What are the trade-offs of using surrogate keys in data visualizations?

Interview question asked to Business Intelligence Engineers interviewing at Amazon: What is surrogate key in data visualisation?.