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Database and Web Introduction Course for Effective Learning

Join our CS181 "Introduction to Database and the Web" class to learn database design, web development, and practical applications in a structured learning environment. Gain hands-on experience in creating databases, tables, queries, and forms, and develop web pages using HTML and CSS. Understand the significance of databases, information representation, and their role in supporting the World Wide Web. Enhance your skills through engaging lectures and practical exercises to excel in database and web technologies.

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Database and Web Introduction Course for Effective Learning

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  1. CS181Introduction to Database and the Web Class hour: 9:55AM-10:45AM MWF. Hyer Hall 210

  2. Course Objectives • Create databases, tables, queries, forms and write reports using RDBMS • Develop and publish web sites using HTML, and CSS.

  3. Textbook/Technology requirement Textbook: 1. HTML for the World Wide Web with XHTML and CSS. Elizabeth Castro. 2003. Peachpit Press. 2. Special Edition Using Microsoft Access 2002. Roger Jennings. 2002. Que Press. Software: Microsoft Access

  4. Introduction Tell me about yourself and what you expect to get out from this course

  5. Self-Introduction • Recently graduated from the University of Connecticut (05 Class), Ph.D in Computer Science and Engineering • Master of Computer Science from UW-Milwaukee (96-99) • Bachelor of Science from Hanoi University of Technology (86-91)

  6. Self-Introduction • Research Experience: • User Modeling, Information Retrieval, Decision Theory, Collaborative Filtering, Human Factors • Teaching Experience: • CS181, 271, 172 Fall 05 at UWW • Introduction courses at UOP and Devry • TA for Computer Architecture, OO Design, Compiler, Artificial Intelligence

  7. Self-Introduction • Teaching philosophy: • Interactive • Adaptive • Pro-active • Collaborative • Other hobbies (non-academic related) • Movies • College Basketball • Family activities

  8. Contact information nguyenh@uww.edu Baker Hall 324 Office Hours: 2:15-4:15pm, MWF or by appointment 262 472 5170

  9. Course detail - Topics Develop simple three tier application Database (back-end) HTML & Java script (front-end) Connecting these two together

  10. Course detail - Evaluation

  11. What does it take to success • Hard working, well-organization, pay attention to detail • Participate in the class discussion • Practice, practice, practice!!!

  12. Questions?

  13. Introduction to Database and Database Design

  14. Introduction to Database • Why are databases important? • How do databases represent information? • Who works with databases? • How do databases support the World Wide Web? • What database concepts and terms do you need to know?

  15. Why Are Databases Important? • Importance to business • Walmart: Records of retail business • Size of warehouses • Size of inventory • Average sales per $ of inventory • Amazon.com: Records of customers • Importance to Web • Records of interactions/transactions • Example of auction site, customers’s preferences/behaviors

  16. Importance of Databases to Economy • Expanding use of databases in retail sales • Walmart, retail sales information tracking • Examples of analyses • Sales of items • Comparisons between daily totals of items sold and items in inventory; seasonal variations in sales of specific and similar items; relative sales of similar items with different features • Market-basket collections (all items in a single purchase) • Average and variation in total purchase amount/number & price of items. • Correlation between sales of items in a single purchase • Customer analysis • Behavior of average customer • Preferences of individual customers

  17. How Do Databases Represent Information? • The physical database: • a collection of files containing the data content • The schema: • a specification of the physical database’s information content and logical structure • The database engine: • software that lets people access and modify the database contents • The data definition and manipulation languages: • programming languages, such as Java or SQL (Structured Query Language), that letsoftware developers define the schema and access the database

  18. How Do Databases Represent Information? • Relational database management system (RDBMS) • Tables of data • Schema • Name of table • Names and types of attributes • Contents • Row is a fact • Attribute value is a characteristic

  19. Example of storing information of a department

  20. Example of storing information of a department

  21. Practice • Open Microsoft Access • Name your database as Example • Create a new table “By Design View” named Department with 2 fields: • Dept: text (3 characters) • Manager: text (11 characters) • Description: text (100 characters)

  22. Who Works with Database Systems? • Database designers • Applications developers • Web-application developers • Web-site designers • Database administrators

  23. How Do Databases Support the World Wide Web? • Maintain information that is published in the site • Track the ways in which site visitors use that information • Track the number of site visitors and customers • Store information collected from input forms such as requests for customer addresses • Store the structure and content of Web pages

  24. Information Systems • Three separate types of functionality: • Data Management • Application logic • Presentation

  25. Single-tier architecture • All functionality combined into a single tier (e.g mainframe where users access through dumb terminal or stand-alone machine where there is no server) • Pros: easy maintenance and administration • Cons: missing GUI, single point failure

  26. Client-server architecture • Thin client • Client implements only the GUI • Server implements business logic and data management • Pros: easy maintenance and implementation • Cons:can’t separate between business logic and data management

  27. Client-server architecture • Thick client • Client implements both GUI and business logic • Server implements data management • Cons: no central place to update the business logic • Security: trust clients • Scalability: problems with 100s of clients

  28. Three tier architecture Client program Presentation tier Application server Middle tier Data management tier Database server

  29. Three tier architecture • Pros: • Heterogeneous systems • Thin clients • Integrated data access • Scalability • Development: • Code for business logic is centralized • Interaction between tiers through well-defined APIs.

  30. Timeline for Database Systems Developments • before 1960 transition from punched card and tape • 1960s, from file management to databases • 1970s, CODASYL and Relational Model • Codd (IBM) Relational Model • Chen introduced Entity Relationship Model • Query languages developed (SQL) • 1980s, Client/Server DBs, Oracle, DB2 • 1990s, web-based information delivery • Trends: expert DBs, object DBs, distributed DBs • 2000s, Enhancing database technology for Web storage and access • Bioinformatics: genetic and protein information, medical records • Using the Web as a database

  31. Questions?

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