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)

6th

Average Rating

8.2

Reviews Sentiment

7.2

Number of Reviews

Ranking in other categories

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

Oracle Exadata Express Clou...

Ranking in Database as a Service (DBaaS)

13th

Average Rating

8.0

Reviews Sentiment

7.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of May 2025, in the Database as a Service (DBaaS) category, the mindshare of Microsoft Azure Cosmos DB is 1.6%. The mindshare of Oracle Exadata Express Cloud Service is 0.4%, 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

Enhances performance without fine tuning databases

They need to simplify the monitoring of the Exadata services. They have to make it more simple for the users to operate or manage. And one more thing, I would expect that other databases of Oracle, like MySQL Enterprise Edition, if technologically, Oracle makes some advancement and allows MySQL Enterprise Edition to run on Exadata, I think that will improve their market share exponentially. Today, on Exadata, you run Oracle databases, which is given. Apart from that, Oracle also has Oracle MySQL database, open source. If that open-source database also runs on Exadata, I think that will help a lot of customers. In the next release, Oracle can provide a script-level solution to migrate or consolidate cross-platform databases from Unix platform to Oracle Exadata on Linux platform; if they can provide some migration tools, I think that will help.

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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

"The standout features are its ability to do data compression easily and the ability to scale horizontally."

"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."

"Microsoft Azure Cosmos DB is a Microsoft solution specifically, but we can develop with different developer kits for different databases."

"For modern applications, I would recommend Microsoft Azure Cosmos DB."

"Microsoft Azure Cosmos DB's most valuable feature is latency."

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

"Microsoft Azure Cosmos DB offers exceptional stability, boasting a reliability rating of 99.95 percent."

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

More Microsoft Azure Cosmos DB pros

"The performance of the tool is valuable."

"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."

"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 highly recommend Oracle Exadata Express Cloud Service as a very good solution if you can afford 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 solution is very stable and offers great performance."

"It is a scalable product."

More Oracle Exadata Express Cloud Service pros

Cons

"We'd like to avoid full DR replication if possible, as this would result in significant cost savings."

"Overall, it works very well and fits the purpose regardless of the target application. However, by default, there is a threshold to accommodate bulk or large requests. You have to monitor the Request Units. If you need more data for a particular query, you need to increase the Request Units."

"The initial setup was difficult."

"If we have a lot of data, doing a real-time vector search is a performance challenge because the search happens over a large dataset. It consumes more time."

"We expect Cosmos DB to lead on that. There is potential for improved security features, which is important for data storage, especially for Dell Technologies."

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

"We had some performance issues with a data segregation query. We worked closely with Microsoft to solve the problem of performance where, for example, one query had a delay of almost two or three minutes for this one use case. Microsoft tried to improve the product, but in the end, the solution was to change to MongoDB. MongoDB had better performance."

"They can implement a better backup system or alert system on Microsoft's end. We do receive notices for regular maintenance or updates, but sudden issues create significant problems."

More Microsoft Azure Cosmos DB cons

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

"Oracle's support could be better."

"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 support must be faster."

"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."

"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."

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

"The solution's pricing could be improved."

More Oracle Exadata Express Cloud Service cons

Pricing and Cost Advice

"Cosmos DB is a PaaS, so there are no upfront costs for infrastructure. There are only subscriptions you pay for Azure and things like that. But it's a PaaS, so it's a subscription service. The license isn't perpetual, and the cost might seem expensive on its face, but you have to look at the upkeep for infrastructure and what you're saving."

"It seems to have helped significantly. We were using a different database system previously, and one of the reasons for acquiring Microsoft Azure Cosmos DB was cost."

"Microsoft provides fair pricing."

"There is a licensing fee."

"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."

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

"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."

"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."

More Microsoft Azure Cosmos DB pricing and cost advice

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

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

"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

12%

Computer Software Company

11%

Comms Service Provider

11%

Financial Services Firm

10%

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.

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

Its cost is transparent. Pricing depends on the transaction and data size, but overall, it is cheaper compared to hosting it on your corporate network due to other factors like power consumption. C...

What needs improvement with Microsoft Azure Cosmos DB?

I had a challenging experience implementing the emulator with a Mac. I had to install the emulator in a Docker container because it is not natively compatible. A significant amount of time was spen...

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

The performance of the tool is valuable.

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

Oracle Exadata Express Cloud Service is a very expensive database solution. The cost is high due to on-premise licenses. However, it offers a premium solution without issues or problems.

What needs improvement with Oracle Exadata Express Cloud Service?

I am not the perfect person to discuss improvements needed because I am not responsible for the database. I use it as a developer, and everything works fine for me. However, there might be others i...

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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 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

TAFEL LEIPZIG, AS ONE

Microsoft Azure Cosmos DB vs. Oracle Exadata Express Cloud Service