Microsoft Azure Cosmos DB vs Oracle Exadata Express Cloud Service comparison

Microsoft and Oracle are both solutions in the Database as a Service (DBaaS) category. Microsoft is ranked #6 with an average rating of 8.2, while Oracle is ranked #10 with an average rating of 8.8. Microsoft holds a 2.8% mindshare in DS, compared to Oracle’s 0.6% mindshare. Additionally, 95% of Microsoft users are willing to recommend the solution, compared to 88% of Oracle users who would recommend it.

Microsoft Azure Cosmos DB

Read 102 Microsoft Azure Cosmos DB reviews

6,178 Views
494 Comparison Views

95% willing to recommend

Oracle Exadata Express Clou...

Read 12 Oracle Exadata Express Cloud Service reviews

330 Views
112 Comparison Views

88% willing to recommend

Microsoft Azure Cosmos DB

Oracle Exadata Express Clou...

Comparison Buyer's Guide

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Executive SummaryUpdated on Jul 13, 2025

Oracle Exadata Express Cloud Service and Microsoft Azure Cosmos DB compete in the cloud database category. Microsoft Azure Cosmos DB seems to have an edge due to its flexibility, scalability, and seamless integration with other Azure products.

Features: Oracle Exadata Express Cloud Service offers superior performance, stabilization, and scalability, benefiting from its robust infrastructure. Microsoft Azure Cosmos DB is known for its scalable, flexible, multi-model support, global distribution capabilities, seamless integration with other Azure services, and features like automatic failover.

Room for Improvement: Users of Microsoft Azure Cosmos DB suggest improvements in query capabilities, integration features, and documentation. Meanwhile, Oracle Exadata Express Cloud Service users seek better monitoring solutions, integration with additional databases like MySQL, and improved technical documentation and support layers. Both products face challenges with pricing complexities.

Ease of Deployment and Customer Service: Microsoft Azure Cosmos DB is primarily deployed on the public cloud and integrates seamlessly with Microsoft's cloud stack, but technical support has mixed reviews. Oracle Exadata Express Cloud Service is available both on public cloud and on-premises, praised for reliable support, though some users report challenges reaching experts, indicating a need for enhanced support services.

Pricing and ROI: Microsoft Azure Cosmos DB is perceived as expensive with usage-based cost models like request units along with complex cost justifications for large-scale deployments. Oracle Exadata Express Cloud Service is recognized as a premium solution with high licensing costs but provides a good performance-to-price ratio, valued for its integration and scalability features, despite higher initial costs.

To learn more, read our detailed Microsoft Azure Cosmos DB vs. Oracle Exadata Express Cloud Service Report (Updated: July 2025).

Buyer's Guide

Microsoft Azure Cosmos DB vs. Oracle Exadata Express Cloud Service

July 2025

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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)

6th

Average Rating

8.2

Reviews Sentiment

7.0

Number of Reviews

102

Ranking in other categories

NoSQL Databases (3rd), Managed NoSQL Databases (1st), Vector Databases (1st)

Oracle Exadata Express Clou...

Ranking in Database as a Service (DBaaS)

10th

Average Rating

8.0

Reviews Sentiment

6.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of August 2025, in the Database as a Service (DBaaS) category, the mindshare of Microsoft Azure Cosmos DB is 2.8%, up from 0.0% compared to the previous year. The mindshare of Oracle Exadata Express Cloud Service is 0.6%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Database as a Service (DBaaS)

Featured Reviews

MichaelJohn

Director | Data & AI at a tech services company with 11-50 employees

Very efficient for application-facing scenarios

There are several areas for improvement. Firstly, having a local development emulator or simulator for Azure Cosmos DB would be beneficial. It would be very handy to have a Docker container that developers can use locally. Although, I know there is a free tier and so on and so forth, having a local environment would be nice. For example, SQL Server is very portable. You can even install it on your machine. That is the number one thing that is missing in Azure Cosmos DB. The second improvement area is the IDE of choice. That means how you interact with Azure Cosmos DB. For example, with SQL Server, you have SQL Server Management Studio. I know there is a little bit of support for Azure Cosmos DB in Azure Data Studio, but it is not heavily advertised or it does not feel like first-class citizen support. Developer experience or developer tooling is missing in terms of interacting with the database. Better developer tools or an IDE for interacting with Azure Cosmos DB would enhance the developer experience. Lastly, there is some mixed messaging about what Azure Cosmos DB is, given its multiple APIs. There are so many Azure Cosmos DB APIs available. There is NoSQL. There are MongoDB, Gremlin, and others. There is still some mixed messaging for others who are new to Azure Cosmos DB about what Azure Cosmos DB is. Is this like MongoDB, but then there is also MongoDB in Azure Cosmos DB? I know it well, and I know that the default one is just NoSQL, but others I have interacted with over the last ten years or so get confused.

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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.

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Quotes from Members

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

Pros

"Latency and availability are incredible."

"The searching capability is exceptional. It is very simple and incomparable to competitors."

"Overall, I would rate Microsoft Azure Cosmos DB a nine out of ten."

"I definitely recommend Microsoft Azure Cosmos DB."

"The global synchronization feature of Azure Cosmos DB stands out as the most valuable for me."

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

"Microsoft Azure Cosmos DB is very easy to use."

"Microsoft Azure Cosmos DB simplifies the process of saving and retrieving data."

More Microsoft Azure Cosmos DB pros

"In the cloud, Exadata is more scalable. The on-prem version was limited. It wasn't that scalable because it only came in a quarter rack, half rack, and full rack. In the cloud, it scales to what you need."

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

"It is a scalable product."

"Having the prediction happen in the modular format allows you to start with a lower version of Exadata and then you can keep on upgrading it as per your requirement."

"I like that Oracle Exadata Express Cloud Service is easier to use and is a cost-saving solution because you won't need to hire people to run and maintain it."

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

"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."

"The performance of the tool is valuable."

More Oracle Exadata Express Cloud Service pros

Cons

"The query searching functionality has some complexities and could be more user-friendly."

"Microsoft Azure Cosmos DB's pricing model is complicated, which people don't understand."

"If you want to bring the data from AWS, you must pay data egress costs. That's a pain point."

"It would be ideal if we could integrate Cosmos DB with our Databricks. At this point, that's not possible."

"The topic of RU consumption needs better documentation. Now that Microsoft has partnered with different LLM organizations, such as OpenAI, a bot could guide us through different metrics present in Microsoft Azure Cosmos DB."

"The query is a little complex. SQL server should have more options. But the query should be better."

"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."

"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."

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."

"Oracle's support could be better."

"We use artificial intelligence for deep learning, and it would be a huge benefit to implement this in Oracle Exadata."

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

"The product's installation process needs improvement. It could be more accessible."

"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 is a pay as you go subscription."

"Most customers like the flexibility of the pricing model, and it has not been an issue. They can start small, and the cost grows with adoption, allowing efficient management of the budget. Its pricing model has not been a concern at all for any of our customers. They understand it. It is simple enough to understand. Oftentimes, it is hard to forecast the RUs, but, in general, it has been fine."

"Its price is very good for the basic stuff. When you go to a more complicated use case, especially when you need replication and availability zones, it gets a little costly."

"I would rate Cosmos DB's cost at seven out of ten, with ten being the highest."

"Its pricing structure is quite flexible."

"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."

"For the cloud, we don't pay for the license, but for the on-prem versions, we do pay."

"If you are a small organization or startup building from scratch without the Microsoft Startup Founder Club support, it could be expensive."

More Microsoft Azure Cosmos DB pricing and cost advice

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

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

"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."

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Top Industries

By visitors reading reviews

Legal Firm

13%

Financial Services Firm

10%

Comms Service Provider

10%

Computer Software Company

No data available

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

Questions from the Community

What do you like most about Microsoft Azure Cosmos DB?

The initial setup is simple and straightforward. You can set up a Cosmos DB in a day, even configuring things like availability zones around the world.

See all answers

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

The pricing for Microsoft Azure Cosmos DB is good, but there is a developer factor to consider. It could be economical or expensive depending on usage. Guidance about query consumption of Request U...

See all answers

What needs improvement with Microsoft Azure Cosmos DB?

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 mo...

See all answers

What do you like most about Oracle Exadata Express Cloud Service?

The performance of the tool is valuable.

See all answers

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.

See all answers

What needs improvement with Oracle Exadata Express Cloud Service?

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.

See all answers

Comparisons

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Compared 11% of the time

Pinecone vs Microsoft Azure Cosmos DB

Compared 10% of the time

MongoDB Enterprise Advanced vs Microsoft Azure Cosmos DB

Compared 6% of the time

Neo4j Graph Database vs Microsoft Azure Cosmos DB

Compared 6% of the time

Amazon DynamoDB vs Microsoft Azure Cosmos DB

Compared 6% of the time

More Microsoft Azure Cosmos DB Competitors

Google Cloud SQL vs Oracle Exadata Express Cloud Service

Compared 100% of the time

More Oracle Exadata Express Cloud Service Competitors

Product Reports

Buyer's Guide

Microsoft Azure Cosmos DB

August 2025

Download Microsoft Azure Cosmos DB product report

Buyer's Guide

Oracle Exadata Express Cloud Service

August 2025

Oracle Exadata Express Cloud Service report

Download Oracle Exadata Express Cloud Service product report

Also Known As

Microsoft Azure DocumentDB, MS Azure Cosmos DB

No data available

Overview

Microsoft Azure Cosmos DB is a globally distributed, multi-model database service providing scalability, user-friendliness, and seamless integration, suitable for managing large volumes of structured and unstructured data across diverse applications.

Azure Cosmos DB is renowned for its scalability, stability, and ease of integration, offering robust support for multiple data models and APIs. Its capacity for handling unstructured data efficiently and providing real-time analytics makes it ideal for applications requiring high performance and global distribution. With features like automatic failover and integration with Microsoft products, users benefit from cost optimization and secure data handling. Enhancement opportunities include simplifying queries, improving documentation, and expanding backup and analytics functionalities.

What are the most important features of Microsoft Azure Cosmos DB?

Scalability and Autoscaling: Efficiently handles growing data and user demands.
Multi-Model Support: Adapts to different data models seamlessly.
Global Distribution: Provides low-latency access across multiple regions.
Automatic Failover: Ensures high availability and reliability.
Integration with Microsoft Products: Offers seamless connectivity with Azure services.

What benefits should users look for in Microsoft Azure Cosmos DB reviews?

Performance and Speed: Exceptionally fast processing for real-time data analytics.
Cost Optimization: Tools for managing expenses effectively.
Secure Data Handling: Implements strong data security measures.
Flexible Data Ingestion: Supports diverse data ingestion methods.

Azure Cosmos DB is frequently used in sectors like web, mobile, IoT, and analytics. It supports applications as a key-value store, processes real-time data, and enables global scalability with low-latency access. Its big data management capabilities and integration with Azure services enhance its utility across industries.

Microsoft

Oracle Database Exadata Express Cloud Service delivers a managed Oracle Database 12c Release 2 Enterprise Edition with options, running on Oracle Exadata engineered systems – all at a highly affordable entry-level price. It is a full Oracle Database experience, compatible with what you get on-premises or in other Oracle Database Cloud Services, provisioned within minutes, and suitable for small to medium sized data.

Oracle

Sample Customers

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

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Buyer's Guide

Microsoft Azure Cosmos DB vs. Oracle Exadata Express Cloud Service

July 2025

Free Report: Microsoft Azure Cosmos DB vs. Oracle Exadata Express Cloud Service

Find out what your peers are saying about Microsoft Azure Cosmos DB vs. Oracle Exadata Express Cloud Service and other solutions. Updated: July 2025.

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