How To Use Columnstore Indexes Master SQL Secrets To Commanding A...

How To Use Columnstore Indexes Master SQL Secrets To Commanding A...

How to Use Columnstore Indexes

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How to Use Columnstore Indexes

One of the most counterintuitive things I had to unlearn when I first got into business intelligence was to stop using traditional B-tree indexes. The types of queries used inMore analytics, which often involve aggregations and complex calculations, generally don't work very well with traditional indexes. They are too tightly focused, which makes them only marginally useful, if at all.

Even worse, they will slow down your ETL: in one particularly bad case, I once worked on a data warehouse where one fact table took over twelve hours to load a day's worth of data. Once we got rid of all the indexes and restructure the table, we were able to get a day's load down to under four minutes.

There is, however, one type of index that does work well with intelligence and analytic processes: the columnstore index.

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Job type: 
other
Experience Requirements: 
Not requirements
Date posted:
2019-12-11
Job Id: 
2667243