1. Introduction of Week 11 Return assignment 9-1 Collect assignment 10-1
Review of week 10
E-commerce styles and architecture
E-commerce database and design
XML document
Well-formed XML document
Valid XML document, DTD, XML schema
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2. Module 5 Databases and the Internet

3. Module 5 Databases and the Internet
Section 3: Web Database Development
Module 5 Databases and the Internet

4. Characteristics and Benefits of Internet Technologies
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5. Typical Uses of Internet Databases
Share information businesses are willing to make public
Shared information is likely to be based on non-critical data
Provide marketing and customer support
Provide corporate information to users inside the company (intranets)
Provide relevant information to users of another company with which the company does business (extranets)
Develop applications
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6. A Sample of Applications
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7. Web-to-Database Middleware: Server-side Extensions
Also known as Web-to-database middleware
Program that interacts directly with Web server to handle specific types of requests
Provides its services to the Web server in a way that is totally transparent to the client browser
Database Management Systems

8. Web-to-Database Middleware
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9. Web Server Interfaces
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10. Windows Applications Use ODBC to Access Databases
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11. Web-to-Database Middleware Accessing Databases
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12. Database Middleware ODBC – Open Database Connectivity OLE-DB
Most DB vendors support this
OLE-DB
Microsoft enhancement of ODBC
JDBC – Java Database Connectivity
Special Java classes that allow Java applications/applets to connect to databases
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13. ODBC or JDBC Open Database Connectivity (ODBC) Required parameters:
API that provides a common language for application programs to access and process SQL databases independent of the particular RDBMS that is accessed
Required parameters:
ODBC driver
Back-end server name
Database name
User id and password
Additional information:
Data source name (DSN)
Windows client computer name
Client application program’s executable name
Java Database Connectivity (JDBC) is similar to ODBC – built specifically for Java applications
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14. ODBC Architecture Client does not need to know anything about the DBMS
Application Program Interface (API) provides common interface to all DBMSs
Each DBMS has its own ODBC-compliant driver
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15. The Web Browser Software that lets users navigate (browse) the Web
Located in client computer
End-user interface to the World Wide Web
Interprets HTML code received from Web server
Presents different page components in a standard way
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16. Client-side Extensions
Add functionality to Web browser
Three general types:
Plug-ins
Java and JavaScript
ActiveX and VBScript
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17. Using a Web-to-Database Production Tool: ColdFusion
Web application server:
Middleware application that expands Web server functionality by linking it to a wide range of services
Provides consistent run-time environment for Web applications
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18. ColdFusion (continued)
ColdFusion application middleware can be used to:
Connect to and query a database from a Web page
Present database data in a Web page, using various formats
Create dynamic Web search pages
Create Web pages to insert, update, and delete database data
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19. ColdFusion (continued)
Define required and optional relationships
Define required and optional form fields
Enforce referential integrity in form fields
Use simple and nested queries and form select fields to represent business rules
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20. How ColdFusion Works
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21. Internet Database Systems: Special Considerations
Internet database systems involve more than just the development of database-enabled Web applications
Concurrent database access by multiple heterogeneous clients affects how transactions are defined and managed
Database administrator must understand the Internet-based business environment to successfully cope with the issues that drive the development, use, and management of Web-to-database interfaces
Database Management Systems

22. Wrap Assignment 11-1: SQL Lab 6 Problem 1 on Page 707
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