NoSQL Queries
NoSQL queries refer to the methods and languages used to interact with NoSQL databases, which are non-relational data stores designed for scalability, flexibility, and handling unstructured or semi-structured data. Unlike SQL queries in relational databases, NoSQL queries vary by database type (e.g., document, key-value, column-family, graph) and often use APIs, query languages like MongoDB's query language, or declarative syntaxes. They enable operations such as CRUD (Create, Read, Update, Delete), aggregation, and indexing on distributed systems.
Developers should learn NoSQL queries when working with applications that require high scalability, real-time data processing, or handling diverse data formats like JSON, XML, or graphs, such as in big data analytics, IoT systems, or social networks. They are essential for leveraging the performance benefits of NoSQL databases in scenarios where relational models are too rigid, such as in microservices architectures or when dealing with rapidly evolving schemas.