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Database Design 1

Database Design 1. CMS 476 Dr. Karl Horak, Instructor. Session 1. Administrivia Course Overview Week in Review Application du Jour Lecture: The Who, What, When, Where and Why of Databases Demonstration: Introduction to Access Exercises. Course Overview. Instructor background

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Database Design 1

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  1. Database Design 1 CMS 476 Dr. Karl Horak, Instructor

  2. Session 1 • Administrivia • Course Overview • Week in Review • Application du Jour • Lecture: The Who, What, When, Where and Why of Databases • Demonstration: Introduction to Access • Exercises

  3. Course Overview • Instructor background • Expectations of students • Grading • Reference material • Organization and presentation • Tools and resources

  4. Instructor Background • PhD, U of A, 1981 • Majored in Botany, Ecology, Statistics and Genetics • Numerical taxonomy and agricultural statistics • Adjunct Professor, CSF since 1990 • Principle Member of Technical Staff, Sandia National Laboratories • Cooperative International Progams • Heavily involved in information management—this class is about what I really do every day

  5. Current Projects • RPT Image Comparison • Global Engagement website • Spent nuclear fuel assessment survey • Wide-area networking technologies for border monitoring

  6. My Toolset • SQL • Access • VBA • Python • Plone

  7. The Bottom Line • Nice people • Cool projects • Interesting travel

  8. Expectations of Students • Preparation • Attendance • Participation • Homework • Exam

  9. Grading

  10. Reference Material • http://home.comcast.net/~karlhorak/476_SYL.htm • http://dir.yahoo.com/Computers_and_Internet/Software/Databases/ • http://en.wikipedia.org/wiki/Database • http://ocw.mit.edu (especially http://ocw.mit.edu/OcwWeb/Electrical-Engineering-and-Computer-Science/6-830Fall-2005/CourseHome/index.htm) • or just Google for it Where’s the textbook?! At your fingertips …

  11. Organization and Presentation • Week in review—databases in real life • Recap—highlights of previous topics and this week’s podcast • Application du jour—samples of databases in action • Tonight’s lecture topic • Demonstration • Exercises and Q&A

  12. Tools and Resources • Access—http://office.microsoft.com/en-us/access • MySQL—http://www.mysql.com • Plone—http://plone.org

  13. Onward…!

  14. Week in Review Or, what I did on my summer vacation • RPT—Access and Python • NEN survey tool • WACSI • MMNA

  15. Application du Jour • WACSI • “Web Access for Civil Society Improvements” • Middle East Regional activity • Internet-centered collaboration • Focused on: • Societal improvements • Economic development • Women’s empowerment • Education • Religious tolerance • Human rights • http://unm.wacsi.edu

  16. Tonight’s Lecture Topic:Who, What, When, Where and Why • What is a database? • Why you should care? • Who uses databases? • When should you use a database? • Where are the databases?

  17. What is a Database? • Webster: “a usually large collection of data organized especially for rapid search and retrieval (as by a computer)” • Horak: All computerized digital information is a database, it just doesn’t know it yet.

  18. Wherefore and Why • Seek and you shall find … well, maybe • “If you don’t know what you’re looking for, you’ll find it.” • “If a piece of data is in a computer twice, one of the copies is wrong.” • The two R’s • Retrieval • Redundancy

  19. What is a Database? Part 2 Types of Databases: • Unstructured (Free-text) • Flat file (e.g., Excel) • Hierarchical (C:\) • Relational (Access, MySQL, Oracle) • Object-oriented (Zope)

  20. Who and When? • DBA = Database Administrator • Anyone with large volumes of data • Anyone with complex questions • Everybody needs databases, they just don’t know it yet

  21. Where are they? Some Examples • http://www.travelschlepp.com • prius.xls • Your hard drive • EFAC.mdb • http://freeplone2.openia.com/mmna

  22. Demonstration • Introduction to MS Access • EFAC database • Terminology • Tables = spreadsheets • Records = rows • Fields = columns • Getting around in Access http://home.comcast.net/~karlhorak/SQLexercises.mdb

  23. Getting Data Out • QBE • Drag-and-drop tables, fields, relationships • Visual query builder • SQL • Manually created and edited • Text-based • SPARQL • RDF and XML-based • Web 2.0

  24. SQL • SELECT <fieldlist or expression> • From <table or query> • Where <condition> • Order by <field or expression> • Group by <field> • Having <condition> • ;

  25. QBE

  26. Exercises and Q&A • Download and open the EFAC database • Familiarize yourself with the structure and the data • Answer some questions by building queries

  27. Queries • Display all data in the table. • Display just facility type and country for all items in the table. • Display the facility type, capacity, and capacity units for just the facilities in Brazil • Display facility type, country, and capacity in kgU/year (hint: capacity is in metric tons, 1000 kg). Include a column that displays the units as "kgU/year".

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