This course explores the fundamentals of NoSQL databases, designed to handle unstructured data and meet the performance, scalability, and flexibility demands of data-intensive applications and big data processing. Students will learn about key NoSQL systems, including key-value stores, graph databases, and document databases. The course focuses on practical skills for working with MongoDB, covering topics such as document management, data querying, indexing, aggregation techniques, and sharding, providing students with the tools to develop scalable and efficient data-driven applications.