SCD's (Slowly changing dimensions) with practical examples explained | Types of SCD's | Live Class

Описание: #SlowlyChangingDimensions #SCD #CleverStudies

Explained what are the slowly changing dimensions in data warehousing concept and which SCD type should be used when.

SCD 0 - Passive method (No change in data)
SCD 1 – Overwriting the old value (Latest Record Only)-No History
SCD 2 – Creating a new additional record (Maintains History)- Row level versioning
SCD 3 – Creating an additional Column (Present-Previous History) -Column level versioning
SCD 4 – Using history table (combination of SCD-1 & 2)
SCD 6 - The hybrid approach (combination of SCD-1,2,3)

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