What Is a Data Mart?
A data mart is a focused subset of a data warehouse that deals with a single area (like different department) of data and is organized for quick analysis
E.g.: sales, marketing etc.
How Is It Different from a Data Warehouse?
E.g.: sales, marketing etc.
How Is It Different from a Data Warehouse?
DWH is used on an enterprise level, while data marts are used on a business division / department level.
Category
|
Data Warehouse
|
Data Mart
|
Scope
|
Corporate
|
Line of Business (LOB)
|
Subject
|
Multiple
|
Single subject
|
Data Sources
|
Many
|
Few
|
Size (typical)
|
100 GB-TB+
|
< 100 GB
|
Implementation Time
|
Months to years
|
Months
|
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