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
