![mongodb org download mongodb mongodb org download mongodb](https://static.filehorse.com/screenshots-mac/developer-tools/mongodb-mac-screenshot-02.png)
Indexing: Without indexing, a database would have to scan every document of a collection to select those that match the query which would be inefficient.For example, it stores all the information of a computer in a single document called Computer and not in distinct relational structures like CPU, RAM, Hard disk, etc. Document Oriented: MongoDB stores the main subject in the minimal number of documents and not by breaking it up into multiple relational structures like RDBMS.It is similar to the Primary key in RDBMS. MongoDB provides a default ‘_id’ (if not provided explicitly) which is a 12-byte hexadecimal number that assures the uniqueness of every document. Similarly, a Tuple is called a Document and A Column is called a Field. What’s called Table in RDBMS is called a Collection in MongoDB. There are a few terms that are related in both databases.MongoDB is faster as compared to RDBMS due to efficient indexing and storage techniques.For example, one data document of a collection in MongoDB can have two fields whereas the other document in the same collection can have four. MongoDB allows a highly flexible and scalable document structure.Complex transactions are not supported in MongoDB because complex join operations are not available.There is no concept of schema or relationship. RDBMS has a typical schema design that shows number of tables and the relationship between these tables whereas MongoDB is document-oriented.MongoDB is such a NoSQL database that scales by adding more and more servers and increases productivity with its flexible document model. NoSQL databases are more scalable and provide superior performance. If the database runs on a single server, then it will reach a scaling limit. Relational Database Management System(RDBMS) i s not the correct choice when it comes to handling big data by the virtue of their design since they are not horizontally scalable. Applications are storing more and more data and are accessing it at higher rates.
![mongodb org download mongodb mongodb org download mongodb](https://www.edureka.co/blog/wp-content/uploads/2019/09/MM1.png)
Modern applications are more networked, social and interactive than ever.
![mongodb org download mongodb mongodb org download mongodb](https://www.how2shout.com/linux/wp-content/uploads/2021/07/MongoDB-Compass-Install-Linux-Ubuntu-20.jpg)
This data is stored in a predefined data model which is not very much flexible for today’s real-world highly growing applications. SQL databases store data in tabular format. This format of storage is called BSON ( similar to JSON format). It means that MongoDB isn’t based on the table-like relational database structure but provides an altogether different mechanism for storage and retrieval of data. MongoDB, the most popular NoSQL database, is an open-source document-oriented database. ISRO CS Syllabus for Scientist/Engineer Exam.ISRO CS Original Papers and Official Keys.GATE CS Original Papers and Official Keys.