Market Share in Fact Table
2 posters
Page 1 of 1
Market Share in Fact Table
Hi,
I wonder if I can put market share values in a fact table. Let me explain myself :
For a university project I have to provide for an automobile company the following values.
- Sells by volumes.
- Market shares.
Sells by volumes is an easy go, but I'm having difficulties with market shares. Do I need to put market shares values in the fact table, or is it better to just calculate them in reports.
Thanks
I wonder if I can put market share values in a fact table. Let me explain myself :
For a university project I have to provide for an automobile company the following values.
- Sells by volumes.
- Market shares.
Sells by volumes is an easy go, but I'm having difficulties with market shares. Do I need to put market shares values in the fact table, or is it better to just calculate them in reports.
Thanks
exhortae- Posts : 30
Join date : 2010-08-01
Re: Market Share in Fact Table
Percentages don't aggregate well, so it is better to calculate them in the report when possible.
You could store market share in a periodic snapshot fact table, but then you are pretty much locked into the grain of the fact table for reporting purposes because percentages won't correctly add or average when aggregating to a higher summary level. If you calculate the percentage in the report you can provide accurate results at any level of drill-down.
You could store market share in a periodic snapshot fact table, but then you are pretty much locked into the grain of the fact table for reporting purposes because percentages won't correctly add or average when aggregating to a higher summary level. If you calculate the percentage in the report you can provide accurate results at any level of drill-down.
VHF- Posts : 236
Join date : 2009-04-28
Location : Wisconsin, US
![-](https://2img.net/i/empty.gif)
» Fact table for stock market transactions
» fact tables for stock market analysis
» 'Routing' the grain of the fact table to multpile members of multiple dimensions causes the fact table to 'explode'
» Integrating new fact table which has one to many relationship with the main fact table in existing star schema
» How to create fact table with measures derived from comparing two fact table rows
» fact tables for stock market analysis
» 'Routing' the grain of the fact table to multpile members of multiple dimensions causes the fact table to 'explode'
» Integrating new fact table which has one to many relationship with the main fact table in existing star schema
» How to create fact table with measures derived from comparing two fact table rows
Page 1 of 1
Permissions in this forum:
You cannot reply to topics in this forum