Learn how NULL business keys are handled in the Raw Data Vault and why two “zero keys” exist. In this video, we explain the difference between the -1 (all zeros) key and the -2 (all Fs) key, how they support data quality management, and when to use each for unknown versus erroneous data. Discover how proper error key handling improves joins, data integrity, and business logic in your Data Vault architecture.
"The Data Vault Handbook"
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"Data Vault Friday"
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