Scenario: A retail company wants to analyze sales data, including sales volume, revenue, and product categories. Which schema would you recommend for their data warehouse: Star Schema or Snowflake Schema, and why?
- Snowflake Schema, because it allows for easier data maintenance and scalability.
- Snowflake Schema, because it supports more complex relationships and enables better data normalization.
- Star Schema, because it facilitates efficient query performance and is easier to implement.
- Star Schema, because it simplifies queries and is more suitable for denormalized data structures.
For a retail company analyzing sales data, a Star Schema would be more appropriate. Star Schema denormalizes data, simplifying queries and enhancing performance, crucial for analytical tasks common in sales analysis. Its structure with a central fact table surrounded by dimension tables suits the needs of reporting and analysis in retail sales, where querying across different dimensions like time, product, and geography is essential.
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