what is degenerated dimension table with scenario
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Answer Posted / bhavemanali10
It is a dimension field in the fact table that doesn't have a corresponding dimension table. As a result - a degenerate dimension will use the field as key, name and its only attribute.
Degenerated dimension can be used to link back to the source as it is a natural key of the "parents" of the line items. It is used in reporting. Degenerate dimensions commonly occur when the fact table's grain is a single transaction. Although there is no corresponding dimension table of attributes, degenerate dimensions can be quite useful for grouping together related fact tables rows.
e.g.In health care, degenerate dimensions can group the claims items related to a single hospital stay or an episode of care
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