Unverified50% confidenceFactExact time
Type 2 SCDs (Slowly Changing Dimensions Type 2) is a technique in data warehouses for tracking historical changes: when a dimension record changes, the old value is not overwritten but a new row is added with a marked effective time range, preserving the complete historical versions.
1
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50%
Confidence
Long-term
Relevance
10/16/2026
First Seen
Sources
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