What is Fact table


Answer posted by Chintan on 2005-05-22 18:46:03: A table in a data warehouse whose entries describe data in a fact table. Dimension tables contain the data from which dimensions are created.

Showing Answers 1 - 13 of 13 Answers

deepak

  • Jun 5th, 2005
 

A fact table in dataware house is it describes the transaction data.It contains characterstics and keyfigures.

etl-new

  • Jun 24th, 2005
 

A Fact table is a collection of facts and foriegn key relations to the dimensions.

Meenal

  • Jul 14th, 2005
 

Fact Table contains the measurements or metrics or facts of business process. If your business process is "Sales" , then a measurement of this business process such as "monthly sales number" is captured in the Fact table. Fact table also contains the foriegn keys for the dimension tables.

tapas

  • Jan 24th, 2006
 

Fact Table contains the keys(primary key,foreign key) of the releated dimension tables and measures which is based on the keys.

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sangroover

  • Feb 15th, 2006
 

Fact table will have numeric coloums.

Or Values of the coloumns in Dimension table

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Kiran Cholleti

  • Apr 17th, 2006
 

fact table which represents the information of measurments and aswell as the foreign key of dimention table.... if am wrong please inform me

kiran cholleti

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ramyagk

  • Apr 25th, 2007
 

Its a table which contains only measures like total,distance,Fare,Number of parcels,Weight etc.
     It contains only numeric values and contains foreign keys.

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chandrarekha

  • May 7th, 2007
 

A Fact table contains a composite key where each candidate key is the foreign key of the dimension table

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sridhar

  • May 30th, 2007
 

Fact table is the one which contains measures of interest at most granular level.These values are numeric.Ex:sales amount would be a measure .

Each dimension table has a single-part primary which exactly corresponds to one of the components of  multiparty key in fact table.

The Dimension table provides detailed info about the facts.eg:quarter,year corresponding to sales amount would be part of dimension table.

ibrarx

  • Mar 7th, 2009
 

A fact table in a data warehouse is one which contains the numeric data, can be further distributed as 'Additive Facts' and 'Non-Additive Facts'.
Additive facts can be the sum of salaries.
Non-Additive facts can be something containing the averages.

most importantly it contains a multiple-part key, composed of the primary keys of the dimension table.

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Fact  table is a normalized table divided in to 2 parts 

  1. Link to all dimension tables -> First part of fact table contains set of foreign keys which links to the respective dimension tables.
  2. Evaluated facts from linked tables -> Second part of fact table contains the summerised set of aggrigated values which helps management in decision making process.

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A fact table is an entity representing the numerical measurements or metrics or facts of the business Eg: Billings table,Bookings table,Accounts table

A dimension table is the entity describing the textual representation of the business.
Eg: Customer table,Customer Address Table,Product table,Time dimension table

In a banking model the account and balances are the measurements with in the fact table where as customer name,social security address, time period of the account are the dimensions (customer/time).

Hope it clarifies

Munavar Shaik

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