Data & storage

Database

Also called DB.

A database is an organized collection of data that software can store, search, and update.

Example

Product listings live in a database. The listings page asks for the published ones instead of keeping a separate handwritten list.

Why it matters

A spreadsheet on one laptop is not a shared database. A database answers queries from the application. The schema describes the shape. The records are the individual items.

Common confusion

A database is not a hosting account, and it is not Git. Git records file history. A database stores the application's data.

Sources

Updated September 30, 2026.

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