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DMDW Lesson 01 - Introduction

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A short lesson with some basic stuff.

Text of DMDW Lesson 01 - Introduction

  • 1. STUDIEREN
    UND DURCHSTARTEN.
    Author I:M.Sc. Johannes Hofmeister
    Author II:Dip.-Inf. (FH) Johannes Hoppe
    Date:11.01.2011
  • 2. Data Mining Data Warehouse
    Author I:M.Sc. Johannes Hofmeister
    Author II:Dip.-Inf. (FH) Johannes Hoppe
    Date:11.01.2011
  • 3. 01
    Hello World
    11.02.2011
    Slide 3
  • 4. Hello World
    About myself
    Technical addicted, freelancer (Web 2.0, PHP / .NET)
    Entrepreneur (promotion-footbags.com)
    Microsoft Student Partner (studentpartners.de)
    University lecturer (fh-heidelberg.de obviously ;-)
    Feel free to call me Johannes!
    11.02.2011
    Slide 4
  • 5. Hello World
    How about you?
    ?
    11.02.2011
    Slide 5
  • 6. 02
    Roadmap, Requirements
    11.02.2011
    Slide 6
  • 7. Roadmap
    Basic knowledge about databases
    Applied Data Mining
    Adventure Works
    Adventure Works DW 2008
    SQL Server Analysis Services
    Algorithms and Methods
    11.02.2011
    Slide 7
  • 8. Roadmap
    My course
    over 50%
    of the lecture will be practical stuff
    11.02.2011
    Slide 8
  • 9. Resources
    Microsoft Visual Studio, SQL Server 2008 Express Editionhttp://www.microsoft.com/express/sql/default.aspx
    MSSQL Server Community Projects & Sampleshttp://www.codeplex.com/SqlServerSamples
    Adventure Works Databasesfor SQL Server 2008, also 2005http://msftdbprodsamples.codeplex.com/
    Adventure Works Sample Data Warehouse Documentationhttp://technet.microsoft.com/en-us/library/ms124623(SQL.90).aspx
    SQL Authority Adventure Works Tutorialhttp://blog.sqlauthority.com/2008/08/10/sql-server-2008-download-and-install-samples-database-adventureworks-2005-detail-tutorial/
    11.02.2011
    Slide 9
  • 10. Resources
    Warning:
    The Microsoft SQL Server is a requirement!
    I will NOT care about your operating system.
    11.02.2011
    Slide 10
  • 11. Resources
    11.02.2011
    Slide 11
  • 12. Requirements
    After a lecture
    I will upload the PowerPoint slides to the blog
    Category: DMDW lecture
    http://blog.johanneshoppe.de/category/dmdw-lecture/
    Feel free to post your questions in the blog! *
    (* Im really lazy in answering mails!)
    11.02.2011
    Slide 12
  • 13. 03
    Basic knowledge
    11.02.2011
    Slide 13
  • 14. Basic knowledge
    Data warehouse
    Using available information
    Data mining
    Finding new information
    11.02.2011
    Slide 14
  • 15. Definitions
    11.02.2011
    Slide 15
    A data warehouse is a single source for key, corporate information needed to enable business decisions .
    Dieter Homeister (his DM Script)
  • 16. Definitions
    11.02.2011
    Slide 16
    A data warehouse is a copy of transaction data specifically structured for querying and reporting.
    Kimball and Ross
  • 17. My Definition
    11.02.2011
    Slide 17
    A data warehouse is a business buzzword. Let's just assume a data warehouse is a copy of crucial company information.
  • 18. Definitions
    Now ignore what I just said
    and take the definitionof Dieter Homeister!
    11.02.2011
    Slide 18
  • 19. Homework!
    11.02.2011
    Slide 19
  • 20. Homework
    Describe elements of a relational database!
    What is referential integrity?
    What is redundancy? Make an example!
    What database column type would you usein order to save a time span (not a point in time)?
    Describe it in a Database system of your choice(SQLServer, MySql, Postgres, )
    11.02.2011
    Slide 20
  • 21. Homework
    What is the difference between char and varchardatatypes in a database table?
    What is the difference between varchar and nvarchar?
    What datatype would you use in order to save a monetary value? Why?
    What do the parameters of the decimal datatype stand for?
    What is the Year 2038 problem?
    11.02.2011
    Slide 21
  • 22. Homework
    What do you have to look out for when choosing a datatype to be used as an automatically incremented primary key?
    Name 4 database systems!
    What does a database system consist of?
    What is an integrated development environment (IDE)?
    Describe the differences between bigint, smallint, and int.
    11.02.2011
    Slide 22
  • 23. THANK YOU
    FOR YOUR ATTENTION
    11.02.2011
    Slide 23

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