Sunday, January 18, 2009

Define : Hybrid SCD

Hybrid Slowly Changing Dimension in Data Warehousing:

Hybrid SCDs are combination of both SCD 1 and SCD 2.

It may happen that in a table, some columns are important and we need to track changes for them i.e capture the historical data for them whereas in some columns even if the data changes, we don't care.

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