EECS 1520 Chapter Notes - Chapter 12.3: Monospaced Font, Database, Database Engine

• School: York University
• Department: Electrical Engineering and Computer Science
• Course: EECS 1520
• Professor: Roger Lew

Document Summary

Database management system: a combination of software and data made up of the physical. Query: a request to retrieve data from a database. database, the database engine, and the database schema. The physical database a collection of flies that contain the data. The database engine software that supports access to and modification of the database contents. The database schema a specification of the logical structure of the data stored in the database. Schema: a specification of the logical structure of data in a database. The logical schema is the more important point of view from the database user"s perspective bc it shows how the data items relate to each other. The user interacts with the database engine software to determine and/or modify the schema for the database. The user then interacts with the engine software to access and modify the contents of the database stored on disk.