How does the concept of slowly changing dimensions (SCD) relate to fact tables?
- SCD is a technique used to update fact tables in real-time
- SCD is irrelevant in the context of fact tables
- SCD is only applicable to dimension tables, not fact tables
- SCD is used to handle changes in dimension attributes over time, impacting both dimension and fact tables
Slowly Changing Dimensions (SCD) are used to manage changes in dimension attributes over time. This is crucial in data warehousing for historical analysis. When changes occur in dimensions, it affects related fact tables as well. Understanding this relationship is vital for designing accurate and comprehensive data warehouses.
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