Database Systems Concepts Chapter 1

Vocabulary practiced based on the Database Systems Concept introductory lecture covering data, DBMS definitions, the evolution of file systems, and database career roles.

Data

Raw, unorganized facts or numbers that by itself does not provide context or insight.

Information

Processed data that has been structured and organized in a meaningful way, used for decision-making and understanding.

Database

A structured and organized collection of data used to efficiently order and manage large amounts of information and make it accessible for users.

Database Management System (DBMS)

Software that enables users to create, manage, and access databases efficiently and provides an interface to input, retrieve, update, and manage data securely.

Flat files

A plain text file, such as a CSV (Comma-Separated Values) file or Excel spreadsheet, that does not contain any structured relationships with other files or databases.

File Processing System

A collection of application programs that perform services for the end-users where each program defines and manages its own data repository.

Database Administrator (DBA)

As part of the role of the DBMS, this person is responsible for designing, creating, and maintaining the database with ease.

Metadata

A component of the database structure that provides information about the data within the system.

Data Redundancy

A problem common in file system data processing where the same data is repeated across multiple files; controlled in database systems to ensure consistency.

Data Integrity

An advantage of database systems that ensures data is accurate, reliable, and remains consistent throughout its lifecycle.

Data Scalability

The ability of a database system to expand and accommodate growth in data volume or users.

Database developer

A career role responsible for creating and maintaining database-based applications using programming and SQL.

Database designer

A professional who focuses on designing and maintaining databases, requiring skills in systems design and SQL.

Database architect

A role that involves designing and implementing database environments at the conceptual, logical, and physical levels.

Database security officer

A specialist who implements security policies for data administration using DBMS fundamentals and data security technologies.