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CERTIFICATION GUIDE DATA DICTIONARY ALL ARTICLES
   
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DATA DICTIONARY

A
ACCEPTANCE TESTING
Testing carried out by the client/customer before accepting the software for operational use.
AGGREGATE
Data stored in a summarized form.Aggregates improve the performance of the BI tools and reduce the storage space requirement.
ALERT
An automatic indication given by a computer to inform about a specific important event.Alerts are set to draw the attention of the user to the occurence of an event.
ATTRIBUTES
The data that describes an entity.For example, if person is an entity, his/her name,address etc. are the attributes that describe that person.

 

DWH CONCEPTS

DWH Architecture
Types of Schema
Normalization

VS LINKS

OLAP Vs OLTP
Dimension Table Vs Fact Table
Datamart Vs Data Warehouse
Data Mining Vs Web Mining


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