Question

Explain the concept of NoSQL databases. Compare key-value stores, columnfamily databases, and document databases with suitable examples and use cases.

30 Jul 2026
Answer :
Word Count : 497
NoSQL databases are non-relational database systems designed to store, manage, and process large volumes of structured, semi-structured, and unstructured data. The term NoSQL generally means “Not Only SQL,” indicating that these databases provide alternatives to the traditional relational model. NoSQL databases are particularly useful in Data Science and Big Data applications because they offer high scalability, flexible data models, fast data access, and the ability to handle distributed workloads. Unlike relational databases, which organize information into fixed tables with rows and columns, NoSQL databases can store data in formats such as key-value pairs, documents, columns, or graphs. Key-value stores _______ ___ ______ _____ _________.
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