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Learn what NoSQL databases are, how they differ from relational databases, and when to use them. Explore the main types of NoSQL databases, their features, and examples. Databases store organized data for easy access and management. Traditional relational databases use structured tables, but modern applications and big data have driven the rise of NoSQL systems. NoSQL databases handle large volumes of unstructured and semi-structured data, offering the scalability and flexibility today’s diverse workloads demand. Types of NoSQL Database NoSQL databases can be classified into four main types, based on their data storage and retrieval methods: Document-based ... Find out what NoSQL databases are used for, why data scientists use them, and a list of the best NoSQL databases available. Unlike relational databases, which organize data into rows and columns like a spreadsheet, NoSQL databases use a single data structure—such as key–value pairs, wide columns, graphs, or documents —to hold information.
