1. Database Design Presenters: Nicolas Lee Tam Nguyen

2. Database Design - Option Student will learn about: http://ict-stage5.wikispaces.com/Syllabus+Outcome Student will learn to: ▫explain the purpose of a database ▫describe the relationships between a database, file, record, field, and character. ▫create an effective design for database form ▫construct query searches and sorts on given data ▫input data via import function

4. Let’s do a quick survey.... About Music Your favourite artist..... What type of music Genre...... Name some of their songs...... Country of birth.....

5. Design Process PlanningDesignEvaluate Collecting of raw data. Favourite Music : Artist Name DOB Genre Song Name

6. What is a database? Data – are raw facts. Database is way of organising and storing collection of similar facts. Give some examples of databases http://edweb.sdsu.edu/courses/edtec570/lfd/dblist.html Non-ComputerisedComputerised

7. Computerised or not? Advantages Disadvantages ▫ Computerised databases?

8. Social Issues How database changes the workplace? ▫Shopping ▫Online personal profiles eg: Linkedin ▫Tax office, government, and banks. ▫Google and social networking databases.... ▫Voting system. ▫http://www.youtube.com/watch?v=hsnr_4ccceY&feature=bulletinhttp://www.youtube.com/watch?v=hsnr_4ccceY&feature=bulletin

9. Security Issues User name and password security - to protect from unauthorised users. Design backup procedure - such as making regular backup and store them is secure location. Protected from viruses and worms. By having the latest virus and update patches. Physical security – Lockup server room http://www.youtube.com/watch?v=z0Npw0SbL6Y&feature=related

10. Ethical Issues Privacy & Security ▫When collecting any personal data - company must published a “privacy policy” to explain how they will use the data. Inappropriate use of data ▫Computer operators, programmers, and other personnel are in positions where they could easily misuse data, if they choose to act unethically. This is known as hacking. ▫Employee always sign a “Code of conduct”

11. Past, current and emerging 1950s– Flat File data 1960s – Hierarchical data structure (Directory structure) 1970s – Relational DBMS (Berkley UC, and IBM DB2) (Ted Codd from IBM) 1980s – Object DBMS 1990s and now– Relational and object DBMS

12. Logical Structure – Flat file

13. Relational Database

14. Database Management Systems(DBMS) Allows you to: ▫Organise data - by applying rules for the set of data (data dictionary for validations) ▫Add, update, and delete records (form) ▫Locate, sort & manipulate data (SQL – query) ▫Display data (report) ▫Control security and data integrity (management).

15. Data Handling ▫Data dictionary – Rules of database  Name of fields  Type of data  How many character  Special features ▫Data types  Text, Memo  Number, Yes/No,  Checkbox,  Date, Currency,  Link, Images, and objects

16. Special Fields – Relational DB Primary Key - Uniquely identifies the contents of a particular table. Most table have a primary key. Foreign Key - A special identifier, that allows relationship to form between two tables.

17. Design Process PlanningDesignEvaluate Collecting of raw data. Favourite Music : Artist Name DOB Genre Song Name Data Dictionary ArtistID number ArtistName text DOB date Genre list Pop Jazz Classical SongID number SongName text Lyrics memo

18. Database inputs - GIGO Data sources ▫acknowledge data sources Validation checks ▫check against data dictionary Verification checks ▫typo and incorrect value – manual validation.

19. Database Output List/TableQueryFormReport List/Table Report Form Query

20. Design Process PlanningDesignEvaluate Collecting of raw data. Favourite Music : Artist Name DOB Genre Song Name Data Dictionary ArtistID number ArtistName text DOB date Genre list Pop Jazz Classical SongID number SongName text Lyrics memo Query Form Report

21. Structured Query Language (SQL) List all artists and songs with a pop genre. SELECT [Artist].[ArtistName], [Songs].SongName, [Song].Lyrics FROM [Songs],[Artist] WHERE ((([Genre].GenreName)=“pop")); Order by ArtistName

22. DBMS Software Common desktop databases: ▫MS Access (only for PCs) ▫File Maker Pro (both Macs & PCs) ▫MySQL ▫Oracle Online databases ▫Zoho DB - http://www.zoho.com/creator/pricing.html http://www.zoho.com/creator/pricing.html

23. Homework Database Online Quiz http://ict-stage5.wikispaces.com/

24. Activity – Fighting Crimes Using queries to solve crimes with MS Acess Please go to: http://ict-stage5.wikispaces.com/ Click on >>> Database activity

25. References Betts, G. (2007). DBMS (Database Management Systems) Retrieved 10 May 2011, from http://www.bettscomputers.com/dbms.htm http://www.bettscomputers.com/dbms.htm Clark, A. (2010). Database software, from http://www.ictgoodies.com/tags/databaseshttp://www.ictgoodies.com/tags/databases Jones, D. (2002). Teach-ICT Retrieved 27/04/2011, 2011, from http://www.teach- ict.com/as_a2/topics/databases/databases.htmhttp://www.teach- ict.com/as_a2/topics/databases/databases.htm Ware, P. (2005). IST: Information and software technology 7-10. Milton, QLD: John Willey. Zoho. (2011). Zoho Report Retrieved 5 May 2011, 2011, from http://reports.zoho.com/login/login.jsp http://reports.zoho.com/login/login.jsp Learning from Databases: Using Existing Online Databases - http://edweb.sdsu.edu/courses/edtec570/lfd/dblist.htm http://edweb.sdsu.edu/courses/edtec570/lfd/dblist.htm