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Interview questions · medium
Explain the differences between Repartition and Coalesce. When would you use each?
Difference between ROW_NUMBER(), RANK(), and DENSE_RANK() with examples.
Difference between where and having clause with examples.
What are primary keys and foreign keys? Why are they important?
What is a self-join, and when would you use it?
What is normalization and denormalization? When would you use each?
What is the difference between a view and a materialized view?
Describe a time when you went above and beyond for a project or a customer.
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