Guide to Data Warehousing and Business Intelligence
A database management system (DBMS) is system software used to manage the organization, storage, access, security and integrity of data in a structured database.
This website provides a high level introduction to DBMS technology.
This tutorial explains what a relational database management system (RDBMS) is.
This website describes basic RDBMS functions and contrasts RDBMS with other database management systems (DBMS) and alternate forms of data storage.