Title: NoSQL Author: Kriko Published: Jun 8, 2023 Last modified: Jul 7, 2026 --- 1. [Home](https://kriko.io/) / 2. [Glossary](https://kriko.io/glossary) / 3. N Letter # NoSQL **NoSQL** refers to database systems that operate outside the traditional relational database model and are used to store, manage and query different types of data. The term is commonly interpreted as “Not Only SQL,” reflecting the fact that these systems are not limited to table-based structures. NoSQL databases are designed to meet the changing and high-volume data requirements of modern applications. Their flexible schema models allow data structures to be updated more easily according to application needs. Data can be accessed through APIs, specialised query languages or SQL-like query structures. These systems are known for high availability, horizontal scalability and fast data processing. For this reason, they are widely used in real-time web applications, big data projects, content platforms, social media applications, messaging systems and IoT solutions. One of the main advantages of NoSQL databases is their ability to manage structured, semi-structured and unstructured data more flexibly. They can adapt quickly to changes in application architecture or data models. This simplifies development processes and allows data to be organised in a way that is more closely aligned with application requirements. NoSQL systems can operate on both physical servers and cloud infrastructure. Through distributed architectures, data workloads can be spread across multiple servers, helping organisations achieve high performance and scalability. NoSQL databases are generally divided into four main categories: **Document databases:** These databases store data in document formats such as JSON or BSON. They are commonly used for content management systems, product catalogues and user profiles that require flexible data structures. **Graph databases:** These databases model relationships between data through nodes and connections. They are used in applications where relationship analysis is important, including social networks, fraud detection, route planning and recommendation systems. **Key-value databases:** These systems store data as a unique key and its associated value. They are suitable for applications that require fast data access, such as caching, session management and shopping carts. **Wide-column databases:** These databases store data in rows and dynamic column families. They are designed for processing large and distributed datasets and are particularly suitable for time-series data, log records and analytical applications. Among these categories, document databases are one of the most widely adopted NoSQL models because of their flexible structure and developer-friendly design. ## Discover it in the dictionary ### Interactive Content Interactive content is a type of content in which users do not remain only as viewers, listeners or readers; instead, they actively participate by… ### Sitemap A sitemap is a file or page structure created to help search engines discover the important pages of a website more easily. In an… ### Mockup A mockup is a visual draft or presentation model created to show how a product, interface, package, printed material or digital design will appear… ### Data Warehouse A data warehouse, commonly abbreviated as DWH, is a data management system that brings information from different sources together for analysis and reporting. Companies… ### Unique Visitor A unique visitor is a web analytics metric that refers to different users who visit a website within a specific time period. The purpose… ### Time to First Byte (TTFB) Time to First Byte, commonly abbreviated as TTFB, refers to the time between a browser sending a request to a web server and receiving… ### Business to Business (B2B) Business to Business, commonly abbreviated as B2B, is a business model in which companies offer their products or services to other companies. In this… ### Debrief A debrief is an evaluation and feedback meeting held after a brief to check whether the information has been understood correctly, clarify uncertain points… ### Business Intelligence Business intelligence, commonly abbreviated as BI, is a data analysis and decision- support approach that helps organisations transform information from different sources into meaningful insights.… ## Track the digital heartbeat with Kriko Subscribe to receive curated insights, news, and ideas shaping the digital landscape. By checking this box, you acknowledge and accept our [privacy policy](https://kriko.io/privacy-policy).