express.pdf
0 likes10 views
MongoDB is a popular open-source NoSQL database management system designed for flexibility, scalability, and high performance. It stores data in flexible JSON-like documents which can have nested structures, does not require a fixed schema, and scales horizontally across servers. MongoDB also offers rich querying, replication for high availability, tunable consistency models, and both community and enterprise editions.
express.pdf
- 2. What is Mongo DB? MongoDB is a popular open-source NoSQL database management system (DBMS) designed for flexibility, scalability, and high performance. NoSQL stands for "not only SQL," and it represents a category of databases that do not adhere to the traditional relational database model, which is based on tables with rows and columns.
- 3. Features of MongoDB ➢ Document-Oriented: MongoDB stores data in documents, which are essentially JSON-like objects with key-value pairs. These documents can have nested structures, making it easy to represent complex data. ➢ Schema-less: Unlike traditional relational databases, MongoDB does not require a fixed schema. This means you can add or remove fields from documents as needed without affecting other documents in the same collection. ➢ Scalability: MongoDB is designed for horizontal scalability, which means you can distribute your data across multiple servers or nodes in a cluster to handle large amounts of data and high traffic loads. ➢ High Performance: MongoDB is optimized for high read and write throughput. It uses memory-mapped files to efficiently access data, and it supports various indexing options to speed up query performance.
- 4. ➢ Rich Query Language: MongoDB provides a powerful query language for retrieving and manipulating data. You can perform queries that match specific document fields, use aggregation pipelines for more complex transformations, and perform geospatial queries for location-based data. ➢ Replication and High Availability: MongoDB offers features like replication and automatic failover to ensure data availability and fault tolerance. In a replica set, multiple MongoDB instances maintain copies of the same data to provide redundancy. ➢ Data Consistency: MongoDB offers tunable levels of data consistency to meet different application requirements. It supports both strong and eventual consistency models. ➢ Community and Enterprise Editions: MongoDB is available in both open-source community and commercial enterprise editions. The community edition is free to use, while the enterprise edition includes additional features and support.
- 5. VISIT www.pskitservices.com More Details Call 09970141466 / 09975288300