Why is MongoDB better than DocumentDB?
Another reason for choosing DocumentDB is keeping everything in AWS. It could be beneficial and convenient to have most, or all, of your services on AWS. DocumentDB is Amazon's only managed MongoDB compatible service. The alternative would be managing databases yourself on EC2/EBS, which is challenging to do.In terms of performance, both databases exhibit excellent read and write speeds. MongoDB's distributed architecture and sharding capabilities enable it to achieve high performance at scale. DocumentDB, with its underlying AWS infrastructure, provides low-latency read and write operations, ensuring fast response times.

Amazon DocumentDB MongoDB Atlas
High resilience, rapid failure recovery, fast failover, retryable writes, multi-region No ~120 second failover, no retryable writes, no multi-region within a single or elastic cluster Yes Typical failover sub-5 seconds, retryable reads and writes, multi-region & multi-cloud clusters

Is MongoDB a DocumentDB : MongoDB is a non-relational document database that provides support for JSON-like storage. The MongoDB database has a flexible data model that enables you to store unstructured data, and it provides full indexing support, and replication with rich and intuitive APIs.

What are the disadvantages of DocumentDB

Document Database Advantages and Disadvantages

Document Database Advantages Document Database Disadvantages
Schema-less Consistency-Check Limitations
Faster creation and care Atomicity weaknesses
No foreign keys Security
Open formats

Why should we prefer MongoDB : Using MongoDB enables your team to go further and faster when developing software applications that handle data of all sorts in a scalable way. MongoDB is an excellent choice if you need to: Support rapid iterative development. Enable collaboration of a large number of teams.

As MongoDB stores a large volume of unstructured data and follows a document-based storage approach, it's relatively faster than MySQL. It means MongoDB stores data in a single document for an entity and helps in faster data read or write. Features like replication can be a big reason for this.

Schema-less.

Like other NoSQL databases, MongoDB doesn't require predefined schemas. It stores any type of data. This gives users the flexibility to create any number of fields in a document, making it easier to scale MongoDB databases compared to relational databases.

What is the advantage of MongoDB

Scalability is one of the most important advantages of MongoDB. As seen, MongoDB uses “sharding”, which expands the storage capacity. Unlike SQL databases that use vertical scalability, sharding allows MongoDB to use horizontal scalability.Using MongoDB can provide many benefits to a software development team. Its flexible schema makes it easy to evolve and store data in a way that is easy for programmers to work with. MongoDB is also built to scale up quickly and supports all the main features of modern databases such as transactions.DocumentDB offers more flexible indexing options, such as adding or updating indexes after table creation, and it makes it easier to query data. These are some key differences between DocumentDB and DynamoDB. The cost structure for both of these AWS NoSQL databases is also different.

Characteristics of Amazon DocumentDB include: High levels of scalability, availability, and performance for data intensive workloads. A flexible schema that permits changes to the data structure without altering the database. Automatic indexing that allows you to easily search and query data.

How is MongoDB better than other databases : In comparison to the SQL server, MongoDB is faster and more scalable. While the SQL server supports JOIN and Global transactions, MongoDB does not. The MS SQL server does not accommodate large amounts of data, however MongoDB does.

Why do people prefer MongoDB : High performance (speed) Thanks to the document model used in MongoDB, information can be embedded inside a single document rather than relying on expensive join operations from traditional relational databases. This makes queries much faster, and returns all the necessary information in a single call to the database.

What is the main advantage of MongoDB

It has attributes like replication and gridFS. Its attributes allow an increase in data availability. It is also easy to access documents using indexing. MongoDB performs 100 times faster than other relational databases and provides high performance.

Thanks to the aggregation pipeline framework, MongoDB can process and return results much quicker than Hadoop could. It's scalable. MongoDB can easily be scaled vertically and horizontally, as needed. This scalability ensures that you can optimize the costs of using MongoDB for your current needs.MongoDB supports many more data types, including dates. Second, DynamoDB enables querying via key-value lookups and table scans. However, its table scan performance is lacking. For more complex or ad hoc-style queries, your best option is to export to a different database.

What are the advantages of MongoDB over DynamoDB : Deployment, maintenance, and integration with your existing infrastructure will be easier if you use AWS DynamoDB. On the other hand, MongoDB is the right choice if you intend to build a multi-cloud architecture, as it offers a powerful set of features that supports multi-vendor, multi-cloud deployments.