Microsoft Azure Cosmos DB vs Oracle Exadata Express Cloud Service comparison

Microsoft Azure Cosmos DB vs. Oracle Exadata Express Cloud Service

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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

109

Ranking in other categories

NoSQL Databases (2nd), Managed NoSQL Databases (1st), Vector Databases (1st)

Oracle Exadata Express Clou...

Ranking in Database as a Service (DBaaS)

13th

Average Rating

8.0

Reviews Sentiment

6.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of June 2026, in the Database as a Service (DBaaS) category, the mindshare of Microsoft Azure Cosmos DB is 4.9%, up from 2.0% compared to the previous year. The mindshare of Oracle Exadata Express Cloud Service is 1.8%, up from 0.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Database as a Service (DBaaS) Mindshare Distribution
Product	Mindshare (%)
Microsoft Azure Cosmos DB	4.9%
Oracle Exadata Express Cloud Service	1.8%
Other	93.3%

Database as a Service (DBaaS)

Featured Reviews

Michael Hasenfang

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.

Read full review

Shrikant Navelkar

Director at Clover Infotech

Have achieved excellent performance and seamless integration with effective cost control in cloud solutions

When customers are migrating from Oracle Exadata Express Cloud Service and need to remove some of their test and development environment, what happens in normal virtualization is that they can just switch it off, but in ExaCS, they need to terminate the entire thing. Most of the customers are not aware of this, so they keep spending money even if they want to shut down their UAT environment or development environment, so Oracle needs to make it simpler in terms of reducing the bill on ExaCS when customers want to shut down certain environments. Today, you have to terminate the entire VM, and only then your billing will stop. The only functionality I would expect from Oracle Exadata Express Cloud Service is that if Oracle is able to support Oracle MySQL Enterprise also on Exadata, that will solve a lot of problems.

Read full review

Quotes from Members

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

Pros

"The solution's enhanced performance is its most valuable aspect."

"The most valuable feature of the solution is that it is scalable with multiple master files."

"Azure Cosmos DB's resiliency is valuable. It is available in every Azure region, allowing quick information storage and retrieval. We can partition it to improve indexing, enabling us to retrieve information and recreate website content quickly."

"The graphical representation of data is the most valuable feature of the solution."

"It handles large-scale operations efficiently, such as tracking views, logs, or events."

"It's not a specific feature that I value, but the scalability of this system is the most impressive aspect."

"I like the way you can create and delete records. You pass a JSON, and then it creates a record."

"Azure Cosmos DB offers efficient indexing and low search latency, making searching fast and efficient and ensuring peace of mind in database operations."

More Microsoft Azure Cosmos DB pros

"Exadata is a highly stable and mature solution."

"The solution is very stable and offers great performance."

"One of the most valuable parts of the solution is the high availability within the system and the performance enhancement without making any changes or fine-tuning the databases."

"I highly recommend Oracle Exadata Express Cloud Service as a very good solution if you can afford it."

"What is most valuable about this solution is there is no comparative solution by any other vendors."

"I would rate Oracle Exadata Express Cloud Service ten out of ten for its overall solution."

"With this cloud service, a development team can get a database immediately, without long negotiation with other services."

"It is a scalable product."

More Oracle Exadata Express Cloud Service pros

Cons

"I would give a low rating to Microsoft support, as whenever I talked to them, I never got a solution. I had to guide them."

"One of the primary challenges with Cosmos DB as a non-relational data store is the careful data modeling required due to the lack of collection-level joins when using the SQL API."

"The size of the continuation token in Azure Cosmos DB should be static rather than increasing with more data, as it can lead to application crashes. They should use a static key size."

"I have to say technical support is not very good as it takes too long. Sometimes it can take them two or three days to respond to your ticket."

"The first one is the ability to assign role-based access control through the Azure portal for accounts to have contributor rights."

"The tool's pricing is expensive."

"The biggest problem is the learning curve and other database services like RDS."

"The built-in integration of the solution is tight."

More Microsoft Azure Cosmos DB cons

"The customer's default choice is the on-premise version of this solution. Only when Oracle or the partners like us, can explain to customers the cloud value proposition, and if the compliance authorities allow, they can look into this cloud solution. It will take some time for Oracle to change its perception of customers' de-facto standards. Exadata used to be treated as a black box, which is not the case now. The customer is aware of what is happening inside, how the configurations have been made, and what patching has been applied. Oracle needs to market the cloud version better."

"The only downside is the difficulty in monitoring, and that's why I would like to implement MySQL database."

"I feel there is a need for better integration with Google Maps and Google Earth. This is crucial for me in the geographical facilities of the environment."

"The customer's default choice is the on-premise version of this solution. Oracle needs to market the cloud version better."

"The solution's pricing could be improved."

"Customer Service: I had no answer when asking why the Customer Support Identifier is invalid Technical Support: The Customer Support Identifier provided was invalid. This means that I had no support, unfortunately."

"Scaling Oracle Exadata Express Cloud Service can be done, but the process is a little tedious, which could be an area for improvement in the solution."

"The support must be faster."

More Oracle Exadata Express Cloud Service cons

Pricing and Cost Advice

"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."

"Its price is in the middle, neither too low nor too high."

"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 solution is a bit on the expensive side."

"Microsoft Azure Cosmos DB is moderately priced, where it is neither expensive nor cheap."

"Cosmos should be cheaper. We actually intend to stop using it in the near future because the price is too high."

"Because of the lack of understanding about RUs, the costs become unpredictable. It sometimes goes over the budget."

"Its pricing is higher compared to solutions like Aerospike. However, it is justified because of the out-of-the-box features that are provided. The availability and resiliency that we have make it worth the price."

More Microsoft Azure Cosmos DB pricing and cost advice

"The price of this solution is very comparative to others on the market. There is no direct comparison between this solution and with something else because I do not see any other similar product."

"I think Oracle pricing is usually above average market price."

"The tool is not cheap, but it is not really expensive."

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Top Industries

By visitors reading reviews

Financial Services Firm

12%

Legal Firm

11%

Comms Service Provider

Manufacturing Company

Financial Services Firm

17%

Comms Service Provider

11%

Recruiting/Hr Firm

11%

Educational Organization

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	33
Midsize Enterprise	22
Large Enterprise	58

By reviewers
Company Size	Count
Small Business	3
Midsize Enterprise	1
Large Enterprise	8

Questions from the Community

What is your experience regarding pricing and costs for Microsoft Azure Cosmos DB?

Microsoft Azure Cosmos DB's pricing model has aligned with my budget expectations because I can tune the RU as I need to, which helps a lot. Microsoft Azure Cosmos DB's dynamic auto-scale or server...

What needs improvement with Microsoft Azure Cosmos DB?

I have not utilized Microsoft Azure Cosmos DB multi-model support for handling diverse data types. I'm not in the position to decide if clients will use Microsoft Azure Cosmos DB or any other datab...

What is your primary use case for Microsoft Azure Cosmos DB?

We have a very large team of developers who develop a solution for our customers. In the part where they need some infrastructure on Microsoft Azure, we deploy entire environments of different type...

What is your experience regarding pricing and costs for Oracle Exadata Express Cloud Service?

Oracle is quite expensive here in Brazil. Pricing is the primary challenge we face with Oracle.

What needs improvement with Oracle Exadata Express Cloud Service?

What is your primary use case for Oracle Exadata Express Cloud Service?

We have been implementing Oracle Exadata Express Cloud Service for our customers for more than 10 to 12 years for our various customers through the on-premise Exadata offerings Oracle has.

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Compared 20% of the time

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Compared 16% of the time

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Compared 8% of the time

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Product Reports

Microsoft Azure Cosmos DB

Download Microsoft Azure Cosmos DB product report

Oracle Exadata Express Cloud Service

Download Oracle Exadata Express Cloud Service product report

Oracle Exadata Express Cloud Service report

Also Known As

Microsoft Azure DocumentDB, MS Azure Cosmos DB

No data available

Overview

Microsoft Azure Cosmos DB offers scalable, geo-replicated, multi-model support with high performance and low latency. It provides seamless Microsoft service integration, benefiting those needing flexible NoSQL, real-time analytics, and automatic scaling for diverse data types and quick global access.

Azure Cosmos DB is designed to store, manage, and query large volumes of both unstructured and structured data. Its NoSQL capabilities and global distribution are leveraged by organizations to support activities like IoT data management, business intelligence, and backend databases for web and mobile applications. While its robust security measures and availability are strengths, there are areas for improvement such as query complexity, integration with services like Databricks and MongoDB, documentation clarity, and performance issues. Enhancements in real-time analytics, API compatibility, cross-container joins, and indexing capabilities are sought after. Cost management, optimization tools, and better support for local development also require attention, as do improvements in user interface and advanced AI integration.

What are the key features of Azure Cosmos DB?

Scalability: Effortlessly handles scaling for large workloads.
Geo-replication: Provides global data access with low latency.
Multi-model Support: Compatible with diverse data types.
NoSQL Flexibility: Offers a non-relational database experience.
Real-time Analytics: Facilitates data-driven decision-making.
Automation: Simplifies scaling and maintenance processes.

What benefits can users expect from Cosmos DB?

High Performance: Ensures rapid processing and low latency.
Ease of Use: Features a user-friendly interface enhancing deployment speed.
Seamless Integration: Connects effortlessly with Microsoft services.
Security: Offers robust measures to protect data integrity.
Consistent Availability: Ensures continuous access to data worldwide.

Industries use Azure Cosmos DB to support business intelligence and IoT data management, using its capabilities for backend databases in web and mobile applications. The platform's scalability and real-time analytics benefit sectors like finance, healthcare, and retail, where managing diverse datasets efficiently is critical.

Microsoft

Oracle Exadata Express Cloud Service enables cost-effective scalability, performance, and security without third-party software, ideal for database consolidation and cloud deployments.

Oracle Exadata Express offers scalable infrastructure that enhances performance while maintaining high availability and robust security. With its integration with Oracle Linux, it minimizes maintenance needs and provides excellent reliability. It supports efficient data handling, stored procedures, and rapid resource expansion. Users prefer it for optimizing database deployments, processing transactions, and managing data across large user bases. Despite its strengths, it requires improvements in compliance with European data regulations, AI capabilities, billing process, and integration with platforms like Oracle MySQL Enterprise and Oracle GoldenGate.

What features does it offer?

Scalable Infrastructure: Delivers cost control and efficient resource management.
Enhanced Performance: Optimizes data processing and transaction handling.
High Availability: Ensures continuous access to critical applications.
Robust Security: Protects data without reliance on third-party solutions.
Oracle Linux Compatibility: Simplifies system maintenance and support.

What benefits and ROI should users look for?

Ease of Use: Simplifies deployment and maintenance.
Resource Expansion: Facilitates quick adaptation to changing demands.
High Performance: Provides unmatched processing power against competitors.
Scalability: Supports growth without sacrificing reliability.

In sectors like banking and insurance, Oracle Exadata Express is used to enhance application performance and manage vast data sets. Its high availability and efficiency make it suitable for handling critical applications, allowing companies to avoid in-house server deployments for secure, cloud-based operations.

Oracle

Sample Customers

TomTom, KPMG Australia, Bosch, ASOS, Mercedes Benz, NBA, Zero Friction, Nederlandse Spoorwegen, Kinectify

TAFEL LEIPZIG, AS ONE

Microsoft Azure Cosmos DB vs. Oracle Exadata Express Cloud Service