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Attributes that don't relate to all of the dimension records.
To keep your model simple, it is desirable to maintain a single dimension with logical null attribute (by logical null, I mean to populate a value like -1 that notifies a not available/applicable). However, your design decision will also depend on the number of records you anticipate in the...- infonitive
- Post #2
- Forum: Data Warehousing/Big Data
