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CST 221: Database Systems

CST 221: Database Systems

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CST 221: Database Systems

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  1. CST 221: Database Systems Dr. Zhen Jiang Computer Science Department West Chester University

  2. Class information • Website www.cs.wcupa.edu/~zjiang/cst221index.htm

  3. Motivation • Why computer minor/certificate? • 6 among top 10 are computer related! (http://www.washingtonpost.com/business/economy/the-10-best-and-worst-jobs-of-2013/2013/05/03/fccd6a8e-b1ab-11e2-bbf2-a6f9e9d79e19_gallery.html#photo=1) • Benefits (http://www.dave-baldwin.com/why-im-sort-of-glad-i-learned-to-write-computer-code/)

  4. Why this class? • Job hunting • WCU graduated, Database, Software Engineering, … vs. • UPenn, Temple, Drexel, … • Something help you to stand out!

  5. Research project • Critical thinking, communication, well-plan, etc. • Real competition, deadline, pressure • More realistic system, complex programming, for instance, http://www.cis.temple.edu/~jiang/RSU_van.pptx. • Student opportunities: http://www.cs.wcupa.edu/~zjiang/student_info.htm • Sponsorship • NSF, NSA, etc • Industry interns

  6. How do you like to be introduced? • No pain, no gain • Happy ending • Need to handle those things coming from pressure: frustration, upset, madness, etc. • Looking for solution, not excuse. • Deadline!

  7. Deadline of assignment • Class website (including ppt)+ google search • Hands-on experience • Group discussion

  8. Topics and schedule • See syllabus Database data Query request DBMS

  9. Integration • Administration • Security & encryption • Privacy & inference • Transaction & injection • Sketching & hashing

  10. Know how simply the system works, rather than memorizing all those in the manual. • Use those generally supported phases, statements, or rules, rather than focusing on trick plays (For instance, no join operator!) • Use class design to better organize the data relationship, reducing the data vulnerability while fully maintaining all the query requirements.

  11. ACCESS -> SQL • How this GUI interface works? • Advanced SQL (nested SQL) • Who can have the control of table? • Normalization • Easy to do • Ambiguous in use for real application • Class design (UML) – alternative design • Use case • Class diagram • Multiple layer • Indirect Database • Server – MySQL • Client – JDBC

  12. API integration

  13. Databases • Relational DB • The dependency relation among data • Non-relational DB • Without such a relation • NonSQL DB • More complicate relation structure • e.g., Kobo, Playtika (mobile service) • Fast third-party data aggregation • Globally distributed data repository • E-commerce and internet burstness • Game (data intensive applications) • Ad targeting (social networks)

  14. Data information • Share the experience of data processing: Word, Power point, Excel, IE, and etc.

  15. Word • <Insert> • <Symbol> • ≥ •  • <Copy> & <Paste> • <Ctrl> <c>  <Ctrl> <v> • <PrtSc> & <Alt> <PrtSc>  <Ctrl> <v> • <Ctrl><p> Summer Training on Computer Science, WCU

  16. Power Point • <Insert> • <Date and Time> ! Summer Training on Computer Science, WCU

  17. <Slide Show> • <Custom Animation>, <Add Effect>, <Motion Path> ! Summer Training on Computer Science, WCU

  18. Excel Document resource: www.cs.wcupa.edu/~zjiang/summer07_student_grade_sample.xls. =average(c6:c28) Another well used function: SUM ! Summer Training on Computer Science, WCU

  19. <Insert> • <Chart> ! Summer Training on Computer Science, WCU

  20. <view> <freeze panes> • B2, $b$2

  21. Data input

  22. Advanced techniques (resorting to other tools, not discussed here) • Conditional formatting table, for single table data query • Templates, for multiple tables • SmartArt and Images • Macros and Visual Basic

  23. IE Summer Training on Computer Science, WCU

  24. Summer Training on Computer Science, WCU

  25. Summer Training on Computer Science, WCU

  26. Information stored in word, Excel, Powerpoint, PDF, txt (plain text), etc • Share/exchange information • PrimoPDFhttp://www.primopdf.com/index.aspx

  27. Problem • How to manage and locate the wanted information?

  28. Directory & files • Multiple descriptors/requirements  single name, single index, single data entity

  29. Database Systems & Access • Shelly, Cashman, Pratt, “Microsoft Office Access 2007 Comprehensive Concepts and Techniques”, Course Technology • Page: AC14 • Page: AC44 • Exercise 1: http://www.cs.wcupa.edu/~zjiang/cst221_lab1.doc

  30. Access • <Start>  <All program>  … <Microsoft Office Access 2007>

  31. Creating a report • Report wizard, page AC50-AC56 • Split form, page AC57-AC59

  32. Input & Output • Page AC211

  33. Assignment 1 (see at class website)