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Cassandra vs MongoDB vs Oracle NoSQL comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Mindshare comparison

As of April 2025, in the NoSQL Databases category, the mindshare of Cassandra is 10.8%, down from 12.8% compared to the previous year. The mindshare of MongoDB is 18.9%, down from 25.8% compared to the previous year. The mindshare of Oracle NoSQL is 2.8%, down from 4.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
NoSQL Databases
 

Featured Reviews

Himanshu Amodwala - PeerSpot reviewer
Well-equipped to handle a massive influx of data and billions of requests
The use of Cassandra in real-time data analytics has been pivotal for our e-commerce platform. As our platform operates 24/7, providing services to sellers and customers alike, the need for real-time updates is paramount. For instance, when a customer leaves comments or feedback on an image, they anticipate an immediate reflection of these changes on the portal. Similarly, sellers altering product attributes or updating images expect instant visibility of these modifications. Handling large data volumes with Cassandra has been an excellent experience. Despite challenges related to the influx, these were not attributed to Cassandra itself but rather to middle-layer issues. Generally, it demonstrated scalability with workloads, thanks to its horizontal scaling capabilities. We could easily add new nodes to the system as needed, ensuring the platform coped well with increasing loads. The tool's most beneficial feature for scalability is its entire architecture. The absence of a single point of failure or a leader within the ecosystem contributes to its robust scalability. This key aspect influenced our decision to opt for the Cassandra ecosystem. In terms of performance, it demonstrated the ability to handle approximately 1.6 billion requests per day. This was achieved on AWS using EC2 instances, and it was during a period about four to five years ago.
Uzair Faruqi - PeerSpot reviewer
Transforms data flow with adaptable schema and smooth public cloud deployment
One of our business units uses MongoDB, and we developed an ETL pipeline that extracts data from MongoDB and transfers it into our data warehouse MongoDB is a NoSQL database that is similar to a document database. It offers flexibility in schema adaptation, allowing us to change the schema and…
GLEDSONCOOPER - PeerSpot reviewer
The implementation is simple and only takes 15 to 30 minutes
NoSQL has high availability. I think it's perfect from a technical perspective. It's quick to run and go Oracle could improve how NoSQL works in containers. I don't think NoSQL needs any new features, but I want to see new features in the Oracle Cloud Infrastructure. I would like to see some…

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"I am getting much better performance than relational databases."
"The technical evaluation is very good."
"I am satisfied with the performance."
"Overall, I would rate Cassandra as nine because of its fast writes, which really suit our use cases mostly."
"The time series data was one of the best features along with auto publishing."
"The solution's database capabilities are very good."
"Our primary use case for the solution is testing."
"The most valuable features of Cassandra are its scaling capabilities and its non-SQL nature capabilities."
"Its flexibility, and cost. It is reasonably priced."
"The installation is very stable."
"It has visible benefits, actually, in terms of price of ownership if you compare it to, for example, Oracle."
"MongoDB is easy to use."
"We haven't had any issues with stability."
"The solution is user-friendly with a good object retrieval feature."
"I think that MongoDB isn't too structured, and that's good for our technical team because they are able to search through the database better than if they are using SQL Server."
"My impression is that the initial setup is straightforward."
"Oracle NoSQL is pretty scalable."
"The product meets expectations when it comes to stability."
"We have a support agreement with Oracle, ensuring full support for the product. It is crucial for our public-facing features. Oracle NoSQL is easy to manage and has fast data retrieval. Its compatibility with Oracle Database is seamless, making integration between NoSQL and relational databases smooth and effortless. Oracle NoSQL and NoSQL data replication in our environment works efficiently. Oracle fully supports it, and we can easily configure and manage authentication for the NoSQL database."
"NoSQL has high availability. I think it's perfect from a technical perspective. It's quick to run and go."
"The tool is easy to learn."
 

Cons

"Doesn't support a solution that can give aggregation."
"We found some issues with the batch inserts when the data volume is large."
"I want Cassandra to update its open-source version more quickly. It's already feature-rich, but I'd appreciate better integration with other NoSQL databases like MariaDB or MongoDB. If I ever need to work with customers or vendors using different NoSQL databases, having native integration in Cassandra would make managing and interacting with their databases much easier."
"There were challenges with the query language and the development interface. The query language, in particular, could be improved for better optimization. These challenges were encountered while using the Java SDK."
"The disc space is lacking. You need to free it up as you are working."
"Cassandra can improve by adding more built-in tools. For example, if you want to do some maintenance activities in the cluster, we have to depend on third-party tools. Having these tools build-in would be e benefit."
"The solution is limited to a linear performance."
"It can be difficult to analyze what's going on inside of the database relative to other databases. It can also be difficult to troubleshoot sometimes."
"The improvements could be made to intelligence to detect disk storage and prevent MongoDB from crashing."
"The analytics needs improvement."
"I rate the support from MongoDB a four out of five."
"There should be better integration with other databases."
"Lacks sufficient scalability and elasticity."
"MongoDB is a very useful and convenient choice, but sometimes for more complex projects, there are certain niche requirements that appear, so using a different tool could be beneficial. It raises the complexity of the architecture, but it could be beneficial to the world, the features, the ease of the features which are being implemented."
"From my point of view, they need a totally free IDE to work at high levels."
"The solution should have better integration."
"Focusing on making the administration easier compared to other solutions like MongoDB could be beneficial. Simplifying the administrative tasks could enhance the user experience."
"The installation is difficult."
"I would rate Oracle NoSQL six or 6.5 out of ten based on my experience."
"Oracle could improve how NoSQL works in containers. I don't think NoSQL needs any new features, but I want to see new features in the Oracle Cloud Infrastructure. I would like to see some improvements in OCI's building options."
"Handling big data in a user-friendly way is currently a bit of an issue. The dashboard for this needs some work."
 

Pricing and Cost Advice

"We pay for a license."
"Cassandra is a free open source solution, but there is a commercial version available called DataStax Enterprise."
"We are using the open-source version of Cassandra, the solution is free."
"I use the tool's open-source version."
"I don't have the specific numbers on pricing, but it was fairly priced."
"There are licensing fees that must be paid, but I'm not sure if they are paid monthly or yearly."
"The pricing is normal. Price-wise, the product is not too much expensive."
"The product is affordable."
"I currently use the solution's community edition which is free."
"We are using the Community Edition of MongoDB."
"The pricing is favorable if you opt to install MongoDB on an Amazon EC2 instance as you won't have to pay for the extra Atlas services and can instead manage the scaling yourself. This allows for a cost-effective solution and using MongoDB on a small scale, I have been able to utilize it for free."
"There is an enterprise license and it could be cheaper. We are using the free open source version."
"There are different licenses available to be purchased, such as individual, premium, or enterprise."
"At the moment, all customers are using the community version."
"The product is expensive and Oracle could work to lower the licensing cost."
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Top Industries

By visitors reading reviews
Financial Services Firm
22%
Computer Software Company
15%
Comms Service Provider
5%
University
5%
Financial Services Firm
19%
Computer Software Company
15%
University
7%
Manufacturing Company
6%
Financial Services Firm
30%
Computer Software Company
13%
Government
8%
Legal Firm
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Cassandra?
The use of Cassandra in real-time data analytics has been pivotal for our e-commerce platform. As our platform operat...
What needs improvement with Cassandra?
While Cassandra can handle NoSQL, I think there should be more flexibility for whole schema design when data is store...
What do you like most about MongoDB?
MongoDB's approach to handling data in documents rather than traditional tables has been particularly beneficial.
What is your experience regarding pricing and costs for MongoDB?
We use the free version of MongoDB, so there are no licensing costs.
What needs improvement with MongoDB?
There is room for improvement in integrating MongoDB with agentive AI solutions. While solutions for other databases ...
What needs improvement with Oracle NoSQL?
Sometimes we face problems with the connection between our applications and the database. It may be due to network is...
 

Comparisons

 

Overview

 

Sample Customers

1. Apple 2. Netflix 3. Facebook 4. Instagram 5. Twitter 6. eBay 7. Spotify 8. Uber 9. Airbnb 10. Adobe 11. Cisco 12. IBM 13. Microsoft 14. Yahoo 15. Reddit 16. Pinterest 17. Salesforce 18. LinkedIn 19. Hulu 20. Airbnb 21. Walmart 22. Target 23. Sony 24. Intel 25. Cisco 26. HP 27. Oracle 28. SAP 29. GE 30. Siemens 31. Volkswagen 32. Toyota
Facebook, MetLife, City of Chicago, Expedia, eBay, Google
Airbus, Globacom, WebAction
Find out what your peers are saying about MongoDB, ScyllaDB, Microsoft and others in NoSQL Databases. Updated: March 2025.
849,475 professionals have used our research since 2012.