What are the advantages of using Type 3 Slowly Changing Dimensions (SCD) over other types?
- Allows for easy querying
- Captures both current and historical data
- Facilitates easy updates
- Requires less storage space
Type 3 SCD is advantageous as it captures both current and historical data. It maintains a separate column for historical changes, providing a snapshot of changes over time without excessive storage requirements. This is particularly useful for scenarios where a limited history is needed.
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Related Quiz
- _______ is a database design technique that involves breaking down large tables into smaller, more manageable parts to improve performance.
- Conceptual schema design aims to create a high-level __________ of the database.
- Scenario: A multinational corporation requires a database to manage its various departments, employees, and projects. How would you approach the conceptual schema design to accommodate diverse business needs and future scalability?
- Scenario: A large e-commerce platform stores millions of product records in its database. To improve query performance, the database administrator decides to implement data partitioning based on product categories. What benefits can the company expect from this storage optimization strategy?
- Scenario: A financial institution wants to analyze customer behavior patterns, including changes in account status and product subscriptions. Which Slowly Changing Dimensions (SCD) technique would you suggest and how would you implement it?