NoSQL
NoSQL (Not Only SQL) is a broad category of database management systems that differ from traditional relational databases by not using SQL as their primary query language and often eschewing fixed table schemas. These databases are designed to handle large volumes of unstructured or semi-structured data, offering high scalability, flexibility, and performance for specific use cases like big data and real-time web applications. Common types include document, key-value, column-family, and graph databases.
Developers should learn NoSQL when building applications that require handling massive amounts of data with high read/write throughput, such as social media platforms, IoT systems, or real-time analytics, where relational databases might struggle with scalability. It's also useful for projects with evolving data models, as NoSQL databases allow for schema flexibility, reducing the need for costly migrations. However, it's not a replacement for SQL databases in all scenarios, particularly where complex transactions and data integrity are critical.
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