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Microsoft Azure Cosmos DB vs Oracle Exadata Cloud at Customer comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jan 25, 2026

Review summaries and opinions

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

Categories and Ranking

Microsoft Azure Cosmos DB
Ranking in Database as a Service (DBaaS)
4th
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
115
Ranking in other categories
NoSQL Databases (1st), Managed NoSQL Databases (1st), Vector Databases (1st)
Oracle Exadata Cloud at Cus...
Ranking in Database as a Service (DBaaS)
16th
Average Rating
7.8
Reviews Sentiment
4.9
Number of Reviews
7
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of November 2026, in the Database as a Service (DBaaS) category, the mindshare of Microsoft Azure Cosmos DB is 4.8%, up from 3.6% compared to the previous year. The mindshare of Oracle Exadata Cloud at Customer is 3.1%, down from 4.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Database as a Service (DBaaS) Mindshare Distribution
ProductMindshare (%)
Microsoft Azure Cosmos DB4.8%
Oracle Exadata Cloud at Customer3.1%
Other92.1%
Database as a Service (DBaaS)
 

Featured Reviews

Aman-Narang - PeerSpot reviewer
Technical Manager at Infosys
Real-time messaging has transformed customer updates and now powers responsive AI experiences
The primary benefits of Microsoft Azure Cosmos DB include horizontal scalability. The main advantage is that it handles data growth without requiring database redesign when traffic increases. Low latency access is another key benefit, as read and write operations are very fast, which is extremely helpful for real-time applications. Flexibility is also valuable because Microsoft Azure Cosmos DB uses JSON schema format, which contrasts with traditional table schemas that require time-consuming changes. In modernization scenarios where client requirements change rapidly, Microsoft Azure Cosmos DB offers more flexible schema design. High availability is another important feature, as it is well-suited for business-critical systems. My overall experience using Microsoft Azure Cosmos DB with other Azure services shows that it is more flexible compared to SQL Database and more readable because of its JSON format, making it easy to understand. It is more interactive because viewing the Microsoft Azure Cosmos DB schema clearly shows what is happening in the application and what will be achieved. In contrast, SQL requires writing many queries to obtain details, making Microsoft Azure Cosmos DB more suitable and flexible. My team's experience developing with Microsoft Azure Cosmos DB SDKs and APIs has been very comfortable and easy to implement. We are currently migrating .NET applications to Python-based AI solutions using Copilot, where we performed reverse engineering and are moving to forward engineering. We use APIs to connect with Microsoft Azure Cosmos DB and manage database containers and items, performing CRUD operations such as create, delete, and read operations, and querying JSON. We are using REST APIs with Python-based solutions, with a service layer and Microsoft Azure Cosmos DB integration.
WB
Oracle DBS at Bpifrance
Positive experience with virtual cloud network creation and database migration highlights patching challenges
The best feature of Oracle Exadata Cloud at Customer is that it can be managed without needing only DBAs. We have many features, including the observability feature that helps check performance and generates numerous reports about performance. We have also implemented APIs, enabling us to create and perform many operations. This means we need DBAs who can work with APIs. We are autonomous in the patching process and don't need Oracle for patching. If you configure the process of patching, it will be executed automatically. We are using dynamic scaling which is implemented on an external virtual machine, helping us to downscale or upscale the CPU. Oracle Exadata Cloud at Customer has supported our organization's compliance and data sovereignty without problems. I have observed some limitations. For example, regarding encryption, though it is mandatory for Exadata Cloud at Customer, we cannot encrypt the database with external keys. Currently, with Exadata Cloud at Customer, using external keys is not possible.

Quotes from Members

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

Pros

"Switching to the cloud significantly improved scalability, flexibility, and uptime."
"Latency and availability are incredible."
"We doubled our productivity with this small application."
"The high speed of Azure Cosmos DB compared to other competitors is remarkable."
"When all resources are at the same point, there is no lag and in production we have experienced minimal issues, with the project live for two years without any database problems."
"Microsoft Azure Cosmos DB's dynamic auto-scale or serverless model helps reduce costs or operational efforts, though I don't have extensive knowledge about this feature."
"The availability and latency of Azure Cosmos DB are excellent."
"What I like about Microsoft Azure Cosmos DB is that it's easy to do data ingestion and use the data in different applications. If you talk about business intelligence such as the Power BI tool, it's easy to connect because both are Microsoft products. With Microsoft Azure Cosmos DB, it's easy to connect and do data ingestion."
"I am particularly fond of the intelligent capabilities that enhance the backend, utilizing technology to analyze SQL queries."
"Performance has significantly improved."
"The best feature of Oracle Exadata Cloud at Customer is that it can be managed without needing only DBAs, with observability features to check performance, generate reports, and implement APIs for creating and performing many operations."
"I like that Oracle Exadata Cloud at Customer is a stable, well-positioned product in the market today, and it's very scalable."
"The operation model is the most valuable feature."
"We have migrated mission-critical databases to Exadata and gained significant performance in our OLTP and Batch jobs."
"The most valuable feature is that it is based on Exadata infrastructure, which is Oracle 's leading engineered system that is trusted, fault-tolerant, and has unique performance features."
"Exporting and importing is easy because of its cleanliness, making the process easier. However, setting up the Data Guard was more difficult. Despite this, the client experienced lower downtime."
 

Cons

"The challenge for us is always scale."
"There is room for improvement in their customer support services."
"One area for improvement is the ease of writing SQL queries and stored procedures in Microsoft Azure Cosmos DB. Writing an SQL query and a stored procedure on top of that is a little challenging."
"The only area Microsoft Azure Cosmos DB can improve on is its documentation; while it is solid and very useful, enhancements in the indexing documentation would help users save costs and make it more cost-effective."
"The RUs still appear to be a black box for everyone. Even though they explain read and write RUs, it remains unclear for many users."
"It should offer a simple user interface for querying Microsoft Azure Cosmos DB."
"The solution cannot join two databases like Oracle or SQL Server."
"It is easy to use, but optimization has been a mixed experience. It has been more of trying to figure out how to do so. We have not found much support there, so we have to come up with our own way of optimizing it in different ways. That is one area of improvement."
"Scalability is not straightforward."
"For the data migration, we used ZDM. It was not integrated with the databases, and the documentation lacks clarity."
"A room for improvement in Oracle Exadata Cloud at Customer is that they need to train more partners to gain more knowledge because currently, they are keeping a lot to themselves. For example, they are still keeping a lot of information on their campus, so information sharing is limited."
"Oracle Exadata Cloud at Customer is stable, but the only problem occurs during OS patching. If you encounter issues, the VMC (virtual machine cluster) becomes unusable."
"The solution is expensive."
"As a customer, you can't see the boot messages of your virtualized guest machines."
"Today their support no longer lives up to my expectation."
"We had some problems in the developer's environment. We had some problems with the initial installation environment."
 

Pricing and Cost Advice

"It is cost-effective. They offer two pricing models. One is the serverless model and the other one is the vCore model that allows provisioning the resources as necessary. For our pilot projects, we can utilize the serverless model, monitor the usage, and adjust resources as needed."
"Our experience with the pricing and setup cost is that it aligns with what we expect based on the pricing we see. However, I would absolutely like it to be less if possible."
"The tool is not expensive."
"Its pricing structure is quite flexible."
"Cosmos DB is expensive compared to any virtual machine based on conventional RDBMS like MySQL or PostgreSQL."
"Cosmos DB gave us three accounts for $400. We pay according to the usage."
"This cost model is beneficial because it allows for cost control by limiting resource units (RUs), which is ideal. However, for our needs, we can't engage with their minimum pricing, which ranges from 100 to 1,000 RUs. At the bare minimum, we need to use 4,000 RUs for a customer. I would like to find a way to gain some advantages from the lowest tier, particularly the ability to scale down if necessary. It would be helpful to have more flexibility in cost management at the lower end."
"The solution is very expensive."
"The price is too much."
"The machine and the cloud model itself already have licensing advantages."
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Outsourcing Company
11%
Legal Firm
10%
Manufacturing Company
9%
Financial Services Firm
29%
Manufacturing Company
10%
Insurance Company
10%
Comms Service Provider
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business36
Midsize Enterprise24
Large Enterprise60
By reviewers
Company SizeCount
Small Business4
Large Enterprise4
 

Questions from the Community

What is your experience regarding pricing and costs for Microsoft Azure Cosmos DB?
I have knowledge about the pricing, setup cost, and licensing aspect of Microsoft Azure Cosmos DB.
What needs improvement with Microsoft Azure Cosmos DB?
Microsoft Azure Cosmos DB could improve cost and performance management to be more straightforward, particularly for teams managing workloads with variable traffic. More detailed and proactive reco...
What is your primary use case for Microsoft Azure Cosmos DB?
My main use case for Microsoft Azure Cosmos DB is to support application workloads that require a highly scalable, low latency NoSQL database. I primarily use it to store and manage semi-structured...
What needs improvement with Oracle Exadata Cloud at Customer?
In future updates for Oracle Exadata Cloud at Customer, I would like to see another feature for the different costs for the non-CDB models, because if you are not using the non-CDB models, you have...
What is your primary use case for Oracle Exadata Cloud at Customer?
The use cases for Oracle Exadata Cloud at Customer are based on our actual solution. We have the Exadata, but it has reached its end of life. The X5 has attained the end of life, so we discussed mi...
What advice do you have for others considering Oracle Exadata Cloud at Customer?
My client is using Oracle Exadata Cloud at Customer, not AWS Cloud or Amazon. For impact assessment of automated routine tasks, we are using our internal solution for backup, which is based on Comm...
 

Also Known As

Microsoft Azure DocumentDB, MS Azure Cosmos DB
No data available
 

Overview

 

Sample Customers

TomTom, KPMG Australia, Bosch, ASOS, Mercedes Benz, NBA, Zero Friction, Nederlandse Spoorwegen, Kinectify
IBVI, illycaffe, Scottish Water, trueblue, AirAsia, droptank
Find out what your peers are saying about Microsoft Azure Cosmos DB vs. Oracle Exadata Cloud at Customer and other solutions. Updated: November 2026.
920,929 professionals have used our research since 2012.