Computer Science · Data Warehousing
In data warehousing, what does a surrogate key primarily provide in dimension tables?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1An index for query optimization only
- 2A system-generated unique identifier independent of source changes✓
- 3A timestamp for data loading
- 4A business-meaningful identifier from the source system
Correct answer
A system-generated unique identifier independent of source changes
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