Concept / Term · Established

NoSQL

Non-relational database family

What does NoSQL mean?

Databases that do not rely only on relational tables, often storing documents, key-value pairs, graphs or wide-column data.

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Database (DB)An organised store of information that an app reads from and writes to.
SQLThe standard language for asking questions of, and managing, data in relational databases.
CRUDThe four basic actions almost every app performs on its data.
JSONThe lightweight, readable text format used to pass data between systems. The default for modern APIs.
HTTP / HTTPSThe rules browsers and servers use to communicate. HTTPS is the encrypted version and is now standard across the web; browsers label sites without it as 'Not secure'.
REST / REST APIThe most common style for building web APIs, using ordinary web requests to read and update data.
URLThe web address of a page or resource, such as https://example.com.
CacheA temporary copy of data kept close at hand so it can be served faster the next time it is needed.