General Datawarehousing Question: Download Questions PDF
Explain What type of Indexing mechanism do we need to use for a typical datawarehouse?
Answer:
On the fact table it is best to use bitmap indexes. Dimension tables can use bitmap and/or the other types of clustered/non-clustered, unique/non-unique indexes.
To my knowledge, SQLServer does not support bitmap indexes. Only Oracle supports bitmaps.
To my knowledge, SQLServer does not support bitmap indexes. Only Oracle supports bitmaps.
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