Database Basics

Flashcards covering basic database concepts and definitions.

Database

An organized collection of logically related data.

Terabyte

A trillion bytes.

Petabyte

A quadrillion bytes.

Data

Facts concerning objects and events that could be recorded and stored on computer media.

Structured Data Types

Numeric, character, and dates.

Structured Data

Data stored in tabular form, in tables, relations, arrays, spreadsheets, and so forth, and are most commonly found in traditional databases and data warehouses.

Unstructured Data/Multimedia Data

Objects such as documents, emails, tweets, Facebook posts, GPS information, maps, photographic images, sound, and video segments.

Expanded Definition of Data

A stored representation of objects and events that have meaning and importance in the user's environment, including both structured and unstructured types.