Fundamentals of Database Systems Chapter 1
Data ️ Known facts that can be recorded and that have implicit meaning.
Database ️ A collection of related data.
Universe of Discourse (UoD) ️ An aspect of the real world a database represents, also known as
miniworld.
Database Management S...
Data ✔️ Known facts that can be recorded and that have implicit meaning.
Database ✔️ A collection of related data.
Universe of Discourse (UoD) ✔️ An aspect of the real world a database represents, also known as
miniworld.
Database Management System (DBMS) ✔️ A computerized system that enables users to create and
maintain a database.
Meta-Data ✔️ The database definition or descriptive information stored by the DBMS in the form of a
database catalog or dictionary.
Constructing ✔️ The process of storing the data on a storage medium that is controlled by the DBMS.
Manipulation ✔️ Functions such as querying the database to retrieve specific data, updating the
database to reflect changes in the miniworld, and gathering reports from the data.
Sharing ✔️ Allows multiple users and programs to access the database simultaneously.
Application Program ✔️ Accesses the database by sending queries and requests for data to the DBMS.
Protection ✔️ Includes system protection against hardware or software malfunction and security
protection against unauthorized or malicious access.
Maintenance ✔️ A system's evolution as requirements change over time.
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