MongoDB Tutorial In 90 Minutes Video Lecture | The Complete Developers Guide to Mongo DB - Database Management

Ans. MongoDB is a popular NoSQL database management system that provides a flexible and scalable solution for storing and retrieving data. It is important for database management as it allows for efficient handling of large amounts of structured and unstructured data, supports high availability and horizontal scaling, and provides powerful querying and indexing capabilities.

Ans. MongoDB differs from traditional relational databases in several ways. Firstly, it uses a document-based model instead of tables and rows, allowing for more flexibility in data representation. Secondly, it does not require a predefined schema, making it easier to handle evolving data structures. Additionally, MongoDB supports horizontal scaling across multiple servers, providing better performance and scalability compared to traditional databases.

Ans. MongoDB offers several key features that make it a popular choice for database management. These include: - Flexible document model: MongoDB stores data in flexible, JSON-like documents that can have varying structures, making it easy to handle diverse data types. - Scalability: MongoDB supports horizontal scaling across multiple servers, allowing for high availability and efficient handling of large datasets. - Indexing and querying: MongoDB provides powerful indexing and querying capabilities, including support for complex queries, full-text search, and geospatial queries. - Automatic sharding: MongoDB automatically distributes data across multiple servers to ensure high performance and scalability. - Replication: MongoDB supports replica sets, allowing for automatic data replication and failover to ensure data availability and reliability.

Ans. To install MongoDB, you can follow these steps: 1. Visit the official MongoDB website and download the appropriate installation package for your operating system. 2. Run the installer and follow the on-screen instructions to complete the installation. 3. Once the installation is complete, you can start the MongoDB server by running the appropriate command for your operating system. 4. MongoDB is now installed and ready to use. You can interact with it using the MongoDB shell or through a programming language-specific driver.

Ans. MongoDB provides a simple and intuitive API for performing CRUD (Create, Read, Update, Delete) operations. Here are some examples: - Create: To insert a document into a collection, you can use the `insertOne()` or `insertMany()` method. - Read: To retrieve documents from a collection, you can use the `find()` method with optional query and projection parameters. - Update: To update one or more documents in a collection, you can use the `updateOne()` or `updateMany()` method with the desired update criteria and modifications. - Delete: To remove one or more documents from a collection, you can use the `deleteOne()` or `deleteMany()` method with the desired deletion criteria. These are just basic examples, and MongoDB provides many more advanced features and options for performing CRUD operations.