•Explain the basic concepts of DBMS.
•Evolution of database technology.
•Identify the characteristics of the database approach.
•Identify advantages of using the DBMS approach.
•Database : A collection of related data.
•Data : Know facts that can be recorded and have an implicit meaning.
•Mini-world: Some part of the real world about which data is stored in a database. For example, student grades and transcripts at a university.
•Database Management System(DBMS) : A software package/system to facilitate the creation and maintenance of a computerized database.
•Database System: The DBMS software together with the data itself. Sometimes, the applications are also included.
Types of databases and database applications
•Traditional database applications.
•Geographical Information System(GIS).
•Data Warehouse and On-Line Analytical Processing(OLAP).
Evolution of database Technology
- Early Database Application: The Hierarchical and Networking Models were introduced in mid 1960’s and dominated during the seventies. A bulk of the worldwide database processing still occurs using these models.
- Relational Model based Systems: The model that was originally introduced in 1970 was heavily researched and experimented with IBM and universities. Relational DBMS Products emerged in the 1980’s.