Databases and Database Users
1 Introduction
2 Database Characteristics
3 Database Actors
4 Data Models, Schemas, and Instances
Database System Concepts
5 Three-Schema Architecture and Data Independence
6 Database Languages
Databases and Database Users
Many daily activities involve the use of applications that interact with a database, for example making a bank operation or an hotel reservations, borrowing a book, purchasing tickets or anything else online.
A database application manages information that is to be stored in a database:
- traditional applications use databases to store textual or numeric data
- social-media web sites use big data storage systems or NOSQL systems to store text data and non conventional data such as images and video data
