ระบบฐานข้อมูลขั้นสูง (Advanced Database Systems) Lecturer AJ. Suwan Janin Phone: 089-148-3993 E-mail: [email protected] [email protected].

CHAPTER 12Databases for Online AnalyticalProcessing

ระบบฐานข้�อมู�ลข้ �นสู�ง(Advanced Database Systems)

LecturerAJ. Suwan Janin

Phone: 089-148-3993E-mail: [email protected]

Outline

Introduction on Chapter 12Data WarehousesOLTP Systems Compared with Data Warehouse Systems

Data Warehouse ArchitectureData MartsData Mining

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Introduction

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Starting in the 1980s, businesses recognized the need for keeping historical data and using it for analysis to assist in decision making. It was soon apparent that data organized for use by day-to-day business transactions was not as useful for analysis. In fact, storing significant amounts of history in an operational database (a database designed to support the day-to-day transactions of an organization) could have serious detrimental effects on performance. William H. (Bill) Inmon participated in pioneering work in a concept known as data warehousing, where historical data is periodically trimmed from the operational database and moved to a database specifically designed for analysis. It was Bill Inmon’s dedicated promotion of the concept that earned him the title “father of data warehousing.”

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Introduction (cont.)

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Data Warehouses

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Data Warehouses (Cont.)

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OLTP Systems Compared with Data Warehouse Systems

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Data Warehouse Architecture

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Summary table data warehouse architecture

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Summary Table Architecture

Star Schema Data Warehouse Architecture

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Star Schema Data Warehouse Architecture

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Star Schema Data Warehouse Architecture

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Multidimensional Databases

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Microsoft Access Implementation

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Data Marts

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Data Marts (cont.)

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Data Mining

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Q&A???????

THANK YOU FOR YOUR KIND ATTENTION !!!

LecturerAJ. Suwan Janin