In Dimensional Modeling, what is a slowly changing dimension (SCD)?
- A dimension that changes at a variable rate
- A dimension that changes over time and requires historical tracking
- A dimension that changes rapidly over time
- A dimension that rarely changes
A slowly changing dimension (SCD) in Dimensional Modeling refers to a dimension that changes over time and requires historical tracking. It involves maintaining historical data for changes in dimension attributes to analyze trends and patterns over different points in time.
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