Table of contents
database
Databases and Data WarehousesBoth are software for storing and managing data, but their design and purpose are quite different, as follows:
- A database is a software used to store and manage data while a data warehouse is a software used to store and manage large amounts of historical data.
- Databases are typically used to support business applications, while data warehouses are used to support decision support systems.
- Databases usually contain current and real-time data, while data warehouses contain historical and bulk data.
- Databases typically employ transaction processing, while data warehouses employ batch processing.
- Databases are usually designed to be application-oriented, while data warehouses are designed to be subject-oriented.
- A database is usually an OLTP (Online Transaction Processing) system, while a data warehouse is an OLAP (Online Analytical Processing) system.
- Databases are typically used to support transaction processing, while data warehouses are used to support analysis and decision making.
- A database usually contains a small number of data tables, while a data warehouse contains a large number of fact tables and dimension tables.
data mining
method:
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decision tree
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Neural Networks
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genetic algorithm
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Association Rule Mining
Classification:
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Correlation Analysis
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sequential pattern analysis
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classification analysis
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Cluster analysis [the inverse of classification analysis]