SCD Types - Manage historical change

What concept do you need more clarity on?

Slowly Changing Dimensions (SCD) are techniques used in data warehousing to manage changes in dimension data over time while maintaining historical accuracy. There are three main types:

1. SCD Type 1 (Simple Overwrite): Updates the data by replacing the old value without retaining any history.
2. SCD Type 2 (Full History): Maintains a complete history by adding new rows for each change, with start and end dates.
3. SCD Type 3 (Limited History): Stores only the most recent change, keeping the previous value in a separate column.

These methods help ensure that historical data is managed according to business requirements for analysis and reporting.

Any reference explaining that concept
https://learn.microsoft.com/en-us/fabric/data-warehouse/dimensional-modeling-dimension-tables#manage-historical-change
https://learn.microsoft.com/en-us/fabric/data-factory/slowly-changing-dimension-type-one
https://learn.microsoft.com/en-us/fabric/data-factory/slowly-changing-dimension-type-two

Have you checked the list of issues to see if there is a similar suggestion?

• Yes, I have checked (please check this box)

Start by reviewing the issue description and its Microsoft Fabric references to understand the requested explanation of Slowly Changing Dimensions. The payload names no target file, test, or entry point; done would require adding a clear project contribution that explains SCD Types 1, 2, and 3.