Microsoft Azure Cosmos DB vs Oracle Database as a Service comparison

Microsoft Azure Cosmos DB vs. Oracle Database as a 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 Database as a Service

Ranking in Database as a Service (DBaaS)

5th

Average Rating

8.6

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 Database as a Service is 8.8%, up from 8.3% 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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Duy AnhMai

Product Owner at Heineken

Offers security and good performance

Price-wise, the tool is expensive, and I feel it is an area where improvements are needed. Oracle Database as a Service is not as popular as other tools because we use AWS and GCP. Oracle is okay in terms of performance for banking businesses and some big companies. As I use the tool in Heineken, I know Oracle is an okay security solution. We use and deploy some applications and features from Oracle that are better than what others offer. The data in the tool is actually stored in the production part, so it is always kept a secret. I don't think that AI has been integrated into the tool. The AI used by Oracle is not as strong as that used by AWS. I recommend the tool to others, especially banking, finance, and insurance companies where the security needs to be better. There is maintenance for the tool required, but I don't know which company does it for our organization. I rate the tool a ten out of ten.

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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

"What I appreciate most are the latency and the access, which are guaranteed by the tool, which is really impressive."

"The solution's read capacity and write access functions are very fast so users don't have to wait when fetching or displaying data on a screen."

"The solution is used because we get faster response times with large data sets than with SQL."

"We have both our SaaS app and the analytical side running without throttling issues."

"Our team has found the vCore index to be one of the most valuable features. We have tokenized and vectorized our entire database and stored this data in MongoDB collections with a vCore index, which works like magic for keyword selection."

"Microsoft Azure Cosmos DB is fast, and its performance is good compared to normal SQL DB."

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

"Cosmos is preferred because of its speed, robustness, and utilization. We have all the merchandising information in Cosmos DB, which provides concrete and optimized data when searching for new products on the site. It is faster than other relational databases."

More Microsoft Azure Cosmos DB pros

"Data Guard is the best solution for Disaster Recovery."

"Scalability is very easy. If you want to, you can make it onto two or three servers, racks, or whatever you want. It's easy."

"The most valuable aspects of the solution are the general database system resilience and security."

"The scalability and high availability are the most valuable features of Oracle DaaS."

"The Oracle Multitenant feature of 12c is awesome. This feature enables us to consolidate disparate databases under one container database and eases manageability of the databases. It also allows us to scale."

"The solution's technical support is good."

"The solution is scalable, has support & right incident, and allows easy data recovery."

"Oracle is the best database in the world."

More Oracle Database as a Service pros

Cons

"Areas of improvement for Microsoft Azure Cosmos DB include indexing. While it makes data retrieval easier, it also increases costs."

"I am disappointed with the lack of compatibility of the Microsoft Azure Cosmos DB emulator with Mac."

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

"Cosmos DB should continue evolving in AI features. 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. We must ensure data security remains the top priority."

"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 customer service is lacking. We have a premier support agreement, but support is hit and miss."

"The cost can sometimes be high, especially during cross-partition queries with large data amounts."

"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."

More Microsoft Azure Cosmos DB cons

"Oracle Database as a Service could improve by having ETL for larger data."

"Oracle DBaaS could be compatible with more platforms."

"The price of the solution is an area of concern. From an improvement perspective, the price of the solution should be lowered."

"In the next release, I would like to see a framework for memory management."

"The ROI has not been good."

"The installation process requires improvement as it can be quite complex."

"It would be better if we could have a little bit of automation or a chance for autoscaling with Oracle Database as a Service."

"The interface can be difficult and there may be so many features that users and even vendors are unaware that they exist."

More Oracle Database as a Service cons

Pricing and Cost Advice

"Cost isn’t a big hurdle for us right now. The solution is not costly."

"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."

"Azure is a pay as you go subscription."

"Cosmos DB is a managed offering, so its cost is understandably higher."

"Cosmos DB's pricing structure has significantly improved in recent months, both in terms of its pricing model and how charges are calculated."

"The Cosmos DB pricing model, initially quite complicated, became clear after consulting with Azure Advisor, allowing us to proceed with confidence."

"Cosmos DB is cost-effective when starting but requires careful management."

"Microsoft provides fair pricing."

More Microsoft Azure Cosmos DB pricing and cost advice

"Customers need to pay extra costs for the solution based on their scope and business."

"The solution is on the expensive side, but I recommend it because it's a good database."

"Oracle Database as a Service's pricing is good."

"The price of Oracle Database as a Service is reasonable."

"What has been done is that an annual subscription model has been launched, which includes the payment of both the AML (Annual Maintenance Fee) and the subscription fee, paid on a yearly basis."

"It is a very expensive tool."

"Pricing for Oracle Database as a Service is expensive."

"For on-premises, a perpetual license is a standard $17,500 plus 22% for one year of support."

More Oracle Database as a Service pricing and cost advice

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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%

Financial Services Firm

26%

Computer Software Company

15%

Retailer

Manufacturing Company

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 Database as a Service?

It has significantly enhanced our application development process by introducing substantial time savings and streamlining routine tasks.

What is your experience regarding pricing and costs for Oracle Database as a Service?

Prices are high. Technical support from Oracle tends to be high in quality.

What needs improvement with Oracle Database as a Service?

It would be beneficial if Oracle could offer features similar to those provided by open-source platforms like Postgres, such as a multi-core-based platform and a shared node database. While Oracle ...

Chroma vs Microsoft Azure Cosmos DB

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Compared 6% of the time

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Compared 6% of the time

Neo4j Graph Database vs Microsoft Azure Cosmos DB

Compared 5% of the time

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Amazon RDS vs Oracle Database as a Service

Compared 47% of the time

Oracle Exadata Cloud at Customer vs Oracle Database as a Service

Compared 16% of the time

Microsoft Azure SQL Database vs Oracle Database as a Service

Compared 12% of the time

Google Cloud SQL vs Oracle Database as a Service

Compared 11% of the time

Azure Database for PostgreSQL vs Oracle Database as a Service

Compared 4% of the time

More Oracle Database as a Service Competitors

Product Reports

Microsoft Azure Cosmos DB

Download Microsoft Azure Cosmos DB product report

Oracle Database as a Service

Download Oracle Database as a Service product report

Also Known As

Microsoft Azure DocumentDB, MS Azure Cosmos DB

Oracle DBaaS, Oracle Database Cloud

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 Cloud Service combines the power of Oracle Database, with the unique capabilities of the Oracle Cloud. The service provides a secure, automated data management platform that leverages on demand Oracle Cloud Infrastructure services via a simple web based user interface and RESTful API. Oracle Database Cloud Service provides elastic database services for development, test, and production environments of custom and packaged online transaction processing (OLTP), data warehousing, and mixed workload applications. It enables businesses to reap all Oracle Platform as a Service (PaaS) benefits including subscriptionbased, self-service access to reliable, scalable, and elastic cloud environments and accelerates time to value by simplifying the provisioning and administration of Oracle databases.

Oracle

Sample Customers

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

Solution-Soft, DX Marketing, Suredell and Partners, Frontiers, SettleOurEstate.com, Demand Analysis Ltd, endlich IT & Projekt Service OHG

Microsoft Azure Cosmos DB vs. Oracle Database as a Service