1. 5.5.2009© Juhani Välimäki HAAGA-HELIA University of Applied Sciences 1 Introduction to IBM DB2 7.5.2009 Tallinn HAAGA-HELIA University of Applied Sciences When selecting or replacing the DBMS IBM DB2 9.5 Express-C Certification courses as part of curriculum? IBM DB2 9.5 Express-C Labs in 319

2. 5.5.2009© Juhani Välimäki HAAGA-HELIA University of Applied Sciences 2 HAAGA-HELIA University of Applied Sciences Your Erasmus Exchange Partner in Helsinki, Finland

3. 5.5.2009© Juhani Välimäki HAAGA-HELIA University of Applied Sciences 3 Haaga-Helia University of Applied Sciences  Your partner for Erasmus Student exchange in Finland  10 000 students (Business, Tourism, Food, Sports trainers, Journalists, Business IT, …)  Helsinki 4 sites, Porvoo(50km) and Vierumäki(130 km)  Not in Haaga-Helia: Health care, Social studies or Engineering. Metropolia University of Applied Sciences teaches them.

4. 5.5.2009© Juhani Välimäki HAAGA-HELIA University of Applied Sciences 4 Haaga-Helia – All IT studies in Helsinki  (IT program in Finnish, 1200 students, 50 teachers)  IT program in English: Business Information Technology, Bite.  17 Teachers, 70 new students each year, 300 in total  Current Bite curriculum started Fall 2007  Generic Application Development studies (As the first tool we use Microsoft Environment)  Students have to be present, only some courses use distance learning.

5. 5.5.2009© Juhani Välimäki HAAGA-HELIA University of Applied Sciences 5 Introduction to IBM DB2 Express-C Free database that is useful even in small business Easy-to-install virtual environment Documentation for self-study

6. 5.5.2009© Juhani Välimäki HAAGA-HELIA University of Applied Sciences 6 IBM DB2 is one of the Big Three (by $ale$) 1.Oracle (Many platforms, even mainframes) 2.IBM DB2 (Many platforms, even mainframes) 3.Microsoft SQL Server  MySQL (has most downloads and installations)

7. 5.5.2009© Juhani Välimäki HAAGA-HELIA University of Applied Sciences 7 All big vendors have their free databases  Can be used in real business without royalties  Limitations to the free DBMS version:  Amount of RAM that can be used (1GB-4GB)  Amount of disk space for the data (4GB- to unlimited)  Number of processor cores used (1-2)  Processor power units  Number of simultaneos network connections  Limited set of features  Optimization and performance tuning features often missing

8. 5.5.2009© Juhani Välimäki HAAGA-HELIA University of Applied Sciences 8 All big vendors have their free databases  Oracle 10g Express Edition  1 CPU, 1 GB RAM, 4GB Data  IBM DB2 9.5 Express-C  2 CPU, 2 GB RAM, Unlimited Data (IBM: ”Generous offer”)  Microsoft SQL Server Express  1 physical CPU (multiple cores), 1 GB RAM, 4GB Data

9. 5.5.2009© Juhani Välimäki HAAGA-HELIA University of Applied Sciences 9 Vendors buying each other – Volatile market  Oracle bought InnoDB (The transaction capable database motor used by MySQL) in 2005  IBM bought Finnish Solid in 2007  Sun bought MySQL (originally Swedish-Finnish) in 2008  What happens to LAMP?  Can one put all eggs in one small basket (Small databases)? Or commit to the Big Three?

10. 5.5.2009© Juhani Välimäki HAAGA-HELIA University of Applied Sciences 10 What to look at when selecting a database?  Performance  Tools  Connections  Own platform  Development tools and environment  Support  Own skills, training  Price, Licences  …

11. 5.5.2009© Juhani Välimäki HAAGA-HELIA University of Applied Sciences 11 What to consider in a new DBMS? 1/2 …  Platform and installation  Hardware including hard disks  User accounts (E.g. Windows AD, Linux, DBMS users)  Terminology changed: Cluster, Server, Database, Instance, Catalog, Schema (every product uses different terms for these. SQL-99 specifies standard names)

12. 5.5.2009© Juhani Välimäki HAAGA-HELIA University of Applied Sciences 12 What to consider in a new DBMS? … 2/2  System roles and privileges, security features  Registration, name services, listeners  (Binding in Mainframes and batch runs)  Connectivity and drivers  Loading old data  Integration to other systems  SQL dialect is the smallest problem

13. 5.5.2009© Juhani Välimäki HAAGA-HELIA University of Applied Sciences 13 Which one to select? All have their strenghts  Oracle is widely used  IBM DB2 spans from small systems to mainframes  Microsoft SQL Server is optimized for Windows and ADO.NET/ASP.NET applications  MySQL is free and most popular in LAMP style packages (But now own by Sun)  PostgreSQL, open source db by community … Big part of the commitment will be product dependent

14. 5.5.2009© Juhani Välimäki HAAGA-HELIA University of Applied Sciences 14 IBM DB2 9.5 Express-C  Installation package downloadable and free for business  (Now here) Ready-made virtual machine image for getting quick look at Linux installation.  Documentation available for self-study labs  Certification for the Fundamentals available  Course held twice a year as intensive course in Haaga- Helia.  IBM Finland offered free certification tests for students and staff of Haaga-Helia

15. 5.5.2009© Juhani Välimäki HAAGA-HELIA University of Applied Sciences 15 IBM DB2 9.5 Express-C Topics in the Fundamentals Certification exam: 1.Database Planning 2.Security 3.Accessing data 4.Working with data 5.Working with DB2 objects 6.Data concurrency 7.XML Data and XQuery

16. 5.5.2009© Juhani Välimäki HAAGA-HELIA University of Applied Sciences 16 Certification courses as part of the curriculum?

17. 5.5.2009© Juhani Välimäki HAAGA-HELIA University of Applied Sciences 17 In Haaga-Helia  Obligatory courses in the curriculum teach all subjects as tool independent as possible.  Tool certification courses mainly as intensive courses.  There are 9 intensive weeks during the academic year  Certification courses could bring quality and knowledge about how things are done in the enterprises?  Effort might be large, 50-150 hours to pass an exam

18. 5.5.2009© Juhani Välimäki HAAGA-HELIA University of Applied Sciences 18 In Haaga-Helia DB2 Certification Test 730  Student’s basic knowledge checked before admission  5 days x 7 hours = 35 hour intensive course  Self-study 2 days  Course exam for all students  Self-study for 7 more days for the most motivated & skilled  Certification exam offered for the most motivated