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What would happen in a cross-reference (XREF) table when multiple sources (CRM and ERP systems) provide data for a single column i.e. contact_info?
Assume that trust score for this column for CRM is 80 while the score for ERP is 75 but LAST_UPDATE_DATE for the record from CRM is earlier than that from ERP.
The cross-reference table wouls contain only one record from CRM since its trust score is higher than that of ERP
The cross-reference table wouls contain only one record from ERP since its LAST_UPDATE_DATE is more recent than that of CRM
The cross-reference table would contain separate records from each source system irrespective of their trust scores and LAST_UPDATE_DATE values
Insufficient data to determine
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