SCD TYPE 2
Slowly Changing Dimension (SCD) Type 2 is a technique used in data warehousing to manage and track historical data changes in dimension tables. SCD Type 2 retains the history of changes by adding new records instead of updating existing ones. This allows for the historical tracking of data changes over time.
Use Cases for SCD Type 2
Track Customer Details:
Address
Contact information
Human Resources
job titles
Departments
Salaries
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14 окт 2024