1. Web-Database Integration Week 8 LBSC 690 Information Technology

2. Agenda Questions PHP SQL Midterm review

3. Ways of Generating Web Pages Static: Written in a markup language –HTML, XML Dynamic: Generated using a program –Common Gateway Interface (.cgi) –Java servlets Dynamic: Generated from a database –Cold Fusion (.cfm) –PHP (.php)

4. Why Database-Generated Pages? Remote access to a database –Client does not need the database software Serve rapidly changing information –e.g., Airline reservation systems Provide multiple “access points” –By subject, by date, by author, … Record user responses in the database

5. Three Ways to Serve Data Web Browser Cold Fusion Server Microsoft Access Microsoft Web Server.mdb PHP-enabled Web Server mysql DBMS mysql database

6. Data Access Pages

7. PHP Examples Demo 1: a “Hello World” program Demo 2: Reading input from a form Demo 3: Printing output from a table

8. Structured Query Language DESCRIBE Flight;

9. Structured Query Language SELECT * FROM Flight;

10. Structured Query Language SELECT Company.CompanyName, Company.CompanyPhone, Flight.Origin, Flight.DepartureTime FROM Flight,Company WHERE Flight.CompanyName=Company.CompanyName AND Flight.AvailableSeats>3;

11. The mysql DBMS mysql –u dbname –h host –p password show databases; use RentAPlane; show tables; describe Flight; select * from Flight; insert into …

12. Cold Fusion Show All Students in Our School SELECT * FROM Students All Students in Our School studentID FirstName MiddleName LastName #studentID# #FirstName# #MiddleName# #LastName# Must be the same name CF variables

13. SQL in ColdFusion Show who borrowed which book SELECT Books.Title, Students.FirstName, Students.MiddleName, Students.LastName, Checkout.DueDate FROM Books, Students, Checkout WHERE Books.BookID=Checkout.BookID AND Students.StudentID=Checkout.StudentID;

14. The Grand Plan Networks XML Multimedia Computers Interaction Search Communication Web Life Cycle Policy Databases Programming Web Databases Midterm Project Final Quiz

15. The Midterm Quiz/homework should be good preparation –A variety of question types –Some questions will require computer use Lots of prior exams are available –Many have solutions available Open book/notes/Internet/mind/… –Just don’t get help from another person

16. Computer Systems Hardware –Types of hardware –Storage hierarchy –Moore’s law Software –Types of software –Types of interfaces

17. Networks Types of Networks –LAN, WAN, Internet, Wireless Packet Switching –Ethernet, routers, routing tables Layered Architecture and protocols –TCP/UDP –IP address/domain name Encryption

18. Structured Documents My Browser The Web –HTTP, HTML, URL XML

19. Multimedia Compression, compression, compression –Image: lossy vs loseless –Video: frames are alike –Speech: voice predictable –Music: masking Streaming Media Sever Internet Buffer

20. Human-Computer Interaction Input and output devices Mental models Interaction styles –Direct manipulation, menus, command line

21. Programming Programming languages –Machines require low-level specific instructions –Humans require high-level abstraction Can create any behavior from 3 control structures –Sequential execution –Conditional –Iteration Javascript interpreters are in Web browsers

22. Databases Structured information –Field->record->table->database –Primary key Normalized tables (relations) –Remove redundancy, inconsistency, error –Easy update, search Join links tables together –Through foreign key Access provides visual operations

23. Web-Database Integration Access “Data Access Pages” PHP SQL