An Introduction to MongoDB and its Database Architecture
MongoDB is one of the strongest NoSQL systems and an open-source database that employs a document-oriented data model and non-structured query language.
Join the DZone community and get the full member experience.Join For Free
As data has been rising all across the globe, there has been a higher interest in the non-relational database which is also known as ‘NoSQL‘. Many organizations and businesses are now seeking novel methods of managing huge sets of information (data). They have moved towards the other database management tools. These systems are different from traditional relational information and MongoDB is one such example.
An Introduction to MongoDB
MongoDB is an open-source database that employs a document-oriented data model and non-structured query language. It is one of the strongest NoSQL systems and databases to exist today.
NoSQL tools do not need usual rows or columns that users associate with relational database management. The architecture is built on documents and collections. Its basic information unit consists of a set of key-value pairs. This allows the documents to gain various fields or structures. The database employs BSON, a document storage format. It is a binary version of JSON documents.
MongoDB development services are the first choice for many people as it works on an extremely elastic data model. It makes users combine and store multivariate information. It doesn’t let the users compromise on the robust indexing options, information access, and validation rules. It does not involve downtime and it aids in the dynamic modification of schemas. The users can concentrate on employing data to do all the hard work in this manner so that the users do not need to spend more time on the preparation of data.
Businesses have increasingly started using MongoDB development services to meet their business requirements for numerous benefits that include:
- This system offers a correct mix of data and technology to give an advantage over the competition.
- It is suitable for critical applications as it reduces the risk consideration.
- It accelerates time to value and lowers the cost of ownership.
- It creates applications that are not possible with the traditional relational databases.
MongoDB NoSQL Database Architecture
Below is a detailed description of MongoDB database architecture:
- Database: The database is the physical container of the data. These databases have their own file sets on the file system with many databases that exist on just one MongoDB server.
- Collection: A collection is a group of database documents. In the RDBMS terms, the collection is a table. This collection occurs within just one database. There is no schema when we talk to collections. Inside this collection, these documents have different fields. Mostly these documents within the collection are just for one purpose and for serving these end goals.
- Document: It is a set of key-value pairs in the form of a document. These are related to dynamic schemas. The advantage of dynamic schemas is that the document is in just one collection. It does not have similar fields or structures. These common fields in the document of a collection have different types of data.
Difference Between MongoDB and RDBMS
MongoDB NoSQL can be directly compared with RDBMS by mapping the different terminologies of the two systems. The RDBMS table is called a collection in MongoDB; the column in RDBMS is a field in MongoDB. RDBMS row is a document in MongoDB development services and the table join in RDBMS is an embedded document in MongoDB. The schema of the relational database depicts the number of tables and the relationship between these tables. however, in MongoDB, the concept of relationship is not followed.
Features of MongoDB
- It supports document-based and ad-hoc queries.
- With Index Support, any of the document’s fields can be easily indexed.
- The feature of replication supports the replication between Master-Slave. This database system employs a native application that maintains many data copies. One of the features of a replica set is that it prevents database downtime.
- It has multiple servers on which the database can be run. The data can be duplicated for foolproofing the system when a hardware failure occurs.
- The process of auto-sharding distributes the data across many physical partitions that are called shards. Because of this process, it has the feature of automatic load balancing.
- It supports MapReduce and it ropes in flexible aggregation tools.
- It helps to cope with the failure cases. It has many replicas that give out higher protection and availability of data against the downtime of the database like multiple machine failures, rack failures, and data center failures.
- GridFS helps to store any file size without complicating the stack. The feature splits files into much smaller parts and they are stored as distinct documents.
- It is a C++ written schema-less database.
- Its storage is document-oriented as it uses a BSON format similar to JSON.
The need for MongoDB Technology
MongoDB technology has helped to overcome a huge scalability pitfall of traditional database systems. The database systems should also be upgraded with the evolving requirements of any business. MongoDB being exceptionally scalable makes it simpler to raise data and to provide automatic and continuous integration. MongoDB Development Company is usually hired by businesses to avail the benefits of these services.
Many reasons make developers choose this system. Some of these reasons are listed below:
- While scaling an application, there is no need for downtime
- Text search
- Global replication
- Performing processing in-memory
- Graph processing
Advantages of Employing MongoDB
There are some major advantages of this system:
- Dispersed Data Platform: It has cloud regions and data centers that are distributed geographically. It is run to ensure novel levels of scalability and availability. With a lack of downtime and without modifying applications, it scales flexibly in terms of throughput and data volume. This technology provides sufficient flexibility across numerous data centers.
- Iterative and Fast Development: Modifying business needs no longer moves fruitful project delivery for an organization. An elastic data model combined with a dynamic schema, and command-line tools, make it quick for the developers to build or evolve the applications. This type of automated provisioning allows continuous delivery and integration to ensure fruitful operations.
- Elastic Data Model: The MongoDB data is available in elastic JSON-like documents. This makes the data persistent and helps in easy combination. These objects in an application code you can map to the document model. This makes it easy to work with the data. The governance of the schema controls data access, rich indexing, and complex aggregations. Thus, the data functionality does not compromise in any manner. You can modify the schema dynamically without downtime.
- Condensed Total Cost of Ownership: The app developers can work in a much better manner if they use this system. The operations department can do its job well at a significantly lower cost since MongoDB is running on commodity hardware.
- Lasting Commitment: Many businesses hire MongoDB developers as this technology is popular with more than 30 million downloads.
Opinions expressed by DZone contributors are their own.