Online analytical processing (OLAP) Question: Download Questions PDF
Explain about Encoding technique used in bitmaps indexes?
Answer:
Bitmaps commonly use one bitmap for every single distinct value. Number of bitmaps used can be reduced by opting for a different type of encoding. Space can be optimized but when a query is generated bitmaps have to be accessed.
Download OLAP Interview Questions And Answers
PDF
| Previous Question | Next Question |
| Explain about the role of bitmap indexes to solve aggregation problems? | Explain about Binning? |