Types of Facts in Data Warehouse

  • (4.0)

1) Addictive Type:

Measurements in a fact table that can be summed up across all dimensions

Consider the following retail fact table:

Store wise sales

Product wise sales

Daily Sales

Enhance your IT skills and proficiency in Data Warehousing by taking up the Informatica Training.

2) Semi Addictive Fact:

Measurements in a fact table that can be summed up across only few dimensions keys Following table is used to record current balance and profit margin for each id at a particular instance of time (Day end)

In the above table we cannot sum up current balance across Acct Id

If we ask balance for Id 21653 we will say that 22000 not 22000+80000

Checkout Informatica Interview Questions

3) Non addictive fact:

Facts that cannot be summed up across any dimension key

Note: % and ratio columns are non addictive facts

4) Factless fact table:

A fact table without any measures is called factless fact table

  • It contains only keys
  • It acts as bridge between dimension keys
Explore Informatica Sample Resumes! Download & Edit, Get Noticed by Top Employers!Download Now!


Popular Courses in 2018

Get Updates on Tech posts, Interview & Certification questions and training schedules