chap03_new - Introduction to Data Warehouse Introduction to...

Info icon This preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon
二〇一七年五月三十一日 Introduction to D/W 1 Introduction to Data Warehouse
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
二〇一七年五月三十一日 Introduction to D/W 2 Chapter Outline What is a data warehouse? A show case of data warehousing A multi-dimensional data model Data warehouse architecture Data warehouse tools and utilities
Image of page 2
二〇一七年五月三十一日 Introduction to D/W 3 Evolution of Database Technology 1960 s: Data collection, database creation, network DBMS 1970s: Relational data model, relational DBMS 1980s: Advanced data models (extended-relational, OO, spatial, temporal D/Bs, etc.) 1990s-current: Data mining, data warehousing, multimedia D/B, and Web
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
二〇一七年五月三十一日 Introduction to D/W 4 Reporting without D/W Various Data Storages Reports/ Screens Data Entry
Image of page 4
二〇一七年五月三十一日 Introduction to D/W 5 Reporting with D/W Data Sources Reports/ Screens Data Warehouse
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
二〇一七年五月三十一日 Introduction to D/W 6 Work Involved in Producing a Report Data Sources Report/ Screen Locate the data needed for the report Gather/select the data Convert the data Merge data from different sources Build the report
Image of page 6
二〇一七年五月三十一日 Introduction to D/W 7 Reporting Work Involved with a D/W Data Sources Report/ Screen Data Warehouse Locate the data needed for the report Gather the data Convert the data Merge data from different sources Build the report
Image of page 7

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
二〇一七年五月三十一日 Introduction to D/W 8 Work Involved in Producing N Reports Data Sources locate gather convert merge build N Reports/ Screens locate gather convert merge build locate gather convert merge build locate gather convert merge build locate gather convert merge build locate gather convert merge build
Image of page 8
二〇一七年五月三十一日 Introduction to D/W 9 Data Sources Data Warehouse Locate the data needed for the report Gather the data Convert the data Merge data from different sources N Reports/ Screens Build the report Build the report Build the report Build the report Build the report Build the report Reporting Work Involved with a D/W
Image of page 9

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
二〇一七年五月三十一日 Introduction to D/W 10 Data Stores, Warehouses and Marts An operational data store (ODS) stores data for a specific application . It feeds the data warehouse a stream of desired raw data. A data warehouse is a collection of integrated databases designed to support DSSs . A data mart is a lower-cost, scaled-down version of a data warehouse, usually designed to support a small group of users (a department rather than an entire firm).
Image of page 10
二〇一七年五月三十一日 Introduction to D/W 11 The Data Warehouse Environment The organization s legacy systems provide data to data warehouse, data mart or operational data store.
Image of page 11

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 12
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern