is a collection of data within defined parameters (a data model) that allows the data elements to be predictable.
Picture it as an electronic filing system: to keep organized, you would add tabbed folders perhaps by function, such as payroll.
Databases provide a standardized system for users to store, retrieve, and protect their data.
They are important components of Web applications because they provide search functions and access to information resources beyond individual Web pages.
After completing this module, you will be able to:
Describe the characteristics of hierarchical and relational databases
Describe the characteristics of database-driven Web sites
Describe the technologies used to connect databases to the Web
Explain the process used to connect a database to the Web using ODBC
Explain the purpose of SQL
The two most common types of databases you will likely encounter are hierarchical and relational databases.
In the next lesson, you will learn the differences between hierarchical and relational databases.