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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)
3rd
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
114
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)
15th
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 October 2026, in the Database as a Service (DBaaS) category, the mindshare of Microsoft Azure Cosmos DB is 4.9%, up from 3.4% compared to the previous year. The mindshare of Oracle Exadata Cloud at Customer is 3.2%, down from 4.3% 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 DB4.9%
Oracle Exadata Cloud at Customer3.2%
Other91.9%
Database as a Service (DBaaS)
 

Featured Reviews

Michael Hasenfang - PeerSpot reviewer
Director, Platform Engineering - Infrastructure Systems and Automation at a computer software company with 1,001-5,000 employees
Collecting compliance data has become more efficient while managing unstructured inputs for reporting
The features that I find most valuable within Microsoft Azure Cosmos DB are probably the cost, as the cost optimization is good. The storage and queryability are good for what we're doing; it's a lot of unstructured data, so having a platform to put that in and then be able to harvest that data out for the reporting we do is essential. In terms of cost saving, it was probably easily 30 to 40% cheaper than doing a standard SQL, which is what we saw just on piloting and getting in there. We were initially thinking 20 to 25%, but we were probably more at the 35 to 40%. We are using Microsoft Azure Cosmos DB's hybrid search today. The value that it has added to my AI or search workloads is that I think it's optimized that process and made it easier. We have a lot of unstructured data coming from different dissimilar systems and different data sources, so correlating those things together and making sense of it has been very beneficial. Microsoft Azure Cosmos DB has had pretty good performance with searching through large amounts of data; it's been fast, and we haven't seen a lot of performance degradation while building larger queries and bringing in a large set of data. The dynamic auto-scale or serverless model from Microsoft Azure Cosmos DB has helped reduce costs and operational effort; however, it's hard to quantify how that plays out since you're using a shared service. It shifts my focus away from building, managing, and upgrading to adding value.
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

"It's highly scalable and supports consistency, security, and multiple security options."
"One valuable feature of Microsoft Azure Cosmos DB is partitioning. Its performance is very nice."
"The biggest benefit of Microsoft Azure Cosmos DB is the general cloud model that Azure gives you, providing more flexibility from a cost and data perspective while offering reasonable pricing and the best security solutions with zero trust protection, and with Azure you can start small and grow as you need."
"The best feature is the velocity to make a query."
"Overall, I think Microsoft Azure Cosmos DB works fine; I don't remember any case where our developers or our clients have been disappointed with it."
"The most valuable features include the global write capability, which allows customers to read and write across different regions simultaneously, enhancing performance and availability."
"Microsoft Azure Cosmos DB has positively impacted my organization by reducing the operational effort required to manage scalable NoSQL workloads and making it easier to support applications as data volumes and users grow."
"The solution is easy to use, and it is also easy to integrate with several things for database use cases."
"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."
"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 am particularly fond of the intelligent capabilities that enhance the backend, utilizing technology to analyze SQL queries."
"I like that Oracle Exadata Cloud at Customer is a stable, well-positioned product in the market today, and it's very scalable."
"Performance has significantly improved."
"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

"There are some disadvantages as it is costly compared to other NoSQL databases. It has a complex pricing model and has a strict partitioning strategy."
"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."
"Customer service and technical support from Microsoft have been all right. On a scale of 1 to 10, I would give them probably a six, maybe a hard seven at most."
"We had to go to forums to check if it was failing for everyone else. It was surprising that a large organization like Microsoft doesn't provide an official statement about the maintenance or issues that could impact our overall usage."
"In the long run, there should be an addition of more features, especially because this space is evolving quickly. It all boils down to how many more features you are adding, how many integrations you are supporting, and how many more APIs you have that are standard APIs."
"The query is a little complex. SQL server should have more options. But the query should be better."
"A further simple application is required for Brazil."
"I would like to see Cosmos DB introduce a feature that would convert machine language to human-readable queries."
"The solution is expensive."
"Today their support no longer lives up to my expectation."
"Scalability is not straightforward."
"For the data migration, we used ZDM. It was not integrated with the databases, and the documentation lacks clarity."
"We had some problems in the developer's environment. We had some problems with the initial installation environment."
"As a customer, you can't see the boot messages of your virtualized guest machines."
"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."
 

Pricing and Cost Advice

"Everything could always be cheaper. I like that Cosmos DB allows us to auto-scale instead of pre-provisioning a certain capacity. It automatically scales to the demand, so we only pay for what we consume."
"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 customer had a high budget, but it turned out to be a little bit cheaper than what they expected. I am not sure how much they have spent so far, but they are satisfied with the pricing."
"The cost is the biggest limitation of this solution."
"Cost isn’t a big hurdle for us right now. The solution is not costly."
"Azure Cosmos DB's pricing is competitive, though there is a need for more personalized pricing models to accommodate small applications without incurring high charges. A suggestion is to implement dynamically adjustable pricing that accounts for various user needs."
"The pricing is perceived as being on the higher side. However, if you have large data operations, it might reduce costs due to performance efficiencies."
"Its pricing structure is quite flexible."
"The machine and the cloud model itself already have licensing advantages."
"The price is too much."
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Outsourcing Company
11%
Legal Firm
10%
Manufacturing Company
8%
Financial Services Firm
29%
Insurance Company
10%
Manufacturing 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 Enterprise59
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?
One thing which has troubled us is the cost model for Microsoft Azure Cosmos DB. It is comparatively very difficult to understand. Sometimes without any efficiency, the cost increases. The cost mod...
What is your primary use case for Microsoft Azure Cosmos DB?
I have been working with Microsoft Azure Cosmos DB for two years, and I have been working with the Azure ecosystem for four to five years.We use Microsoft Azure Cosmos DB because it provides a scal...
What is your experience regarding pricing and costs for Oracle Exadata Cloud at Customer?
The pricing is reasonable due to a universal agreement, which often positions Oracle solutions better against others. I would rate the pricing an eight out of ten.
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...
 

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: September 2026.
917,433 professionals have used our research since 2012.