Introduction - Databases A database (abbreviated DB) is an entity in which data can be stored in a structured manner, with as little redundancy as possible.... Databases > Databases |
Data levels The ANSI/SPARC architecture, which dates from 1975, defines abstraction levels for a database management system: Internal (or... Databases > Databases |
DBMS models Databases appeared in the late 1960s, at a time when the need for a flexible information management system had arisen. There are five... Databases > Databases |
Databases - Using forms In order to use databases, the user must be provided with an interface that allows him or her to view data based on certain criteria.... Databases > Databases |
