Databases

Definition

Databases are organized collections of data that are designed to efficiently store, retrieve, and manage large amounts of information. They provide a structured way to organize data into tables with rows and columns.

Related terms

SQL: SQL (Structured Query Language) is a language used for managing databases. It allows users to create, modify, and query databases using commands.

Primary Key: A primary key is a unique identifier for each record (row) in a table. It ensures that each record has a unique value and is used to establish relationships between tables.

Foreign Key: A foreign key is a field in one table that refers to the primary key of another table. It establishes relationships between tables, allowing data to be linked and related across different tables.