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Microsoft Azure Cosmos DB vs Oracle Database as a 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 #5 with an average rating of 8.8. Microsoft holds a 2.8% mindshare in DS, compared to Oracle’s 9.1% mindshare. Additionally, 95% of Microsoft users are willing to recommend the solution, compared to 97% 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 Database as a Service
Read 68 Oracle Database as a Service reviews
  • 1,516 Views
  • 1,455 Comparison Views
97% willing to recommend
 

Comparison Buyer's Guide

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Executive SummaryUpdated on Jul 13, 2025

In the competitive database-as-a-service category, Oracle Database as a Service and Microsoft Azure Cosmos DB cater to diverse business needs. While Oracle offers superior security, Cosmos DB is favored for cloud-native ease and handling unstructured data efficiently.

Features: Oracle Database as a Service offers multitenancy, automated resource management, and disaster recovery with Data Guard. Its integration with Oracle applications enhances its functionality. Cosmos DB supports multi-model databases, global distribution, and time-to-live controls, making it ideal for fast, versatile data handling.

Room for Improvement: Oracle could improve integration with non-Oracle databases, governance, and cost-efficiency. Feedback highlights the need for better support and clearer pricing models. Cosmos DB can enhance complex query support and integration with other platforms, with users desiring reduced costs and improved documentation.

Ease of Deployment and Customer Service: Oracle Database as a Service provides flexible deployment options including on-premises and cloud models, though setup complexity is noted. Customer service receives mixed reviews. Cosmos DB excels in cloud deployment ease but faces criticisms related to support complexity and less personalized service.

Pricing and ROI: Oracle is known for its high cost due to extensive features, affecting ROI for some users. Cosmos DB's usage-based pricing aligns cost with resource consumption, offering flexibility but challenging budget predictability and impacting perceived ROI.

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To learn more, read our detailed Microsoft Azure Cosmos DB vs. Oracle Database as a Service Report (Updated: July 2025).
Buyer's Guide
Microsoft Azure Cosmos DB vs. Oracle Database as a 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:
 

ROI

Sentiment score
6.2
Microsoft Azure Cosmos DB reduces total cost through dynamic scaling, eliminating dedicated admins, and offering global distribution efficiency.
Sentiment score
7.2
Oracle Database as a Service offers productivity and security benefits, despite high costs, with strong preference in regions like APAC.
Getting an MVP of that project would have taken six to eight months, but because we had an active choice of using Azure Cosmos DB and other related cloud-native services of Azure, we were able to get to an MVP stage in a matter of weeks, which is six weeks.
You can react quickly and trim down the specs, memory, RAM, storage size, etc. It can save about 20% of the costs.
When I have done comparisons or cost calculations, I have sometimes personally seen as much as 25% to 30% savings.
For more quotes and insights, download the Microsoft Azure Cosmos DB report
In Bangladesh, digital banking is becoming prominent within a couple of years, so all banking systems will be digital.
For more quotes and insights, download the Oracle Database as a Service report
MichaelJohn - PeerSpot reviewer
BP
AH
SI
 

Customer Service

Sentiment score
6.7
Feedback on Azure Cosmos DB's support varies, highlighting fast assistance with premium plans but inconsistency and delays otherwise.
Sentiment score
8.3
Oracle Database support is responsive but needs better communication, efficiency, multilingual resources, and support team segmentation.
Premier Support has deteriorated compared to what it used to be, especially for small to medium-sized customers like ours.
The response was quick.
I would rate customer service and support a nine out of ten.
For more quotes and insights, download the Microsoft Azure Cosmos DB report
Oracle provides expert support globally, not just in South Asia -- also in Europe and America.
For more quotes and insights, download the Oracle Database as a Service report
reviewer2595951 - PeerSpot reviewerJoel Hulen - PeerSpot reviewerMichaelJohn - PeerSpot reviewer
SI
 

Scalability Issues

Sentiment score
7.8
Microsoft Azure Cosmos DB offers scalable solutions with auto-scaling and partitioning, managing large workloads efficiently while reducing costs.
Sentiment score
6.6
Oracle Database as a Service is highly scalable, supporting numerous users and servers, but scaling costs could improve.
The system scales up capacity when needed and scales down when not in use, preventing unnecessary expenses.
We like that it can auto-scale to demand, ensuring we only pay for what we use.
We have had no issues with its ability to search through large amounts of data.
For more quotes and insights, download the Microsoft Azure Cosmos DB report
No quotes available
For more quotes and insights, download the Oracle Database as a Service report
Hashir Ali Shuja - PeerSpot reviewerTiago Duarte - PeerSpot reviewerreviewer2678751 - PeerSpot reviewer
 

Stability Issues

Sentiment score
7.6
Microsoft Azure Cosmos DB is highly stable, reliable, and globally robust, offering strong performance and low latency despite minor issues.
Sentiment score
7.1
Oracle Database as a Service is praised for its strong stability, reliability, and smooth integration, despite some scalability concerns.
We have multiple availability zones, so nothing goes down.
Azure Cosmos DB would be a good choice if you have to deploy your application in a limited time frame and you want to auto-scale the database across different applications.
I would rate it a ten out of ten in terms of availability and latency.
For more quotes and insights, download the Microsoft Azure Cosmos DB report
The solution is stable, resilient, and doesn't crash under pressure.
For more quotes and insights, download the Oracle Database as a Service report
reviewer2596239 - PeerSpot reviewerHarshitGaur - PeerSpot reviewerAroosh Kumar - PeerSpot reviewer
SI
 

Room For Improvement

Azure Cosmos DB needs better cost models, performance, documentation, query capabilities, integration, analytics, security, and operational features.
Oracle Database as a Service needs complexity reduction, enhanced integration, improved usability, security, automation, and flexible licensing to boost adoption.
We must ensure data security remains the top priority.
You have to monitor the Request Units.
The dashboard could include more detailed RU descriptions, IOPS, and compute metrics.
For more quotes and insights, download the Microsoft Azure Cosmos DB report
With the advent of generative AI, adding functionality where current administrative activities could be automated would be beneficial.
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.
For more quotes and insights, download the Oracle Database as a Service report
Mohamed Ait Salah - PeerSpot reviewer
BP
FG
reviewer2728149 - PeerSpot reviewer
SI
 

Setup Cost

Microsoft Azure Cosmos DB's pricing is complex yet flexible, offering scalability and cost-effectiveness with efficient resource management.
Oracle Database as a Service is costly, includes licenses and support, with high technical support quality but added fees.
Initially, it seemed like an expensive way to manage a NoSQL data store, but so many improvements that have been made to the platform have made it cost-effective.
Cosmos DB is expensive, and the RU-based pricing model is confusing.
Cosmos DB is great compared to other databases because we can reduce the cost while doing the same things.
For more quotes and insights, download the Microsoft Azure Cosmos DB report
Prices are high.
For more quotes and insights, download the Oracle Database as a Service report
Joel Hulen - PeerSpot reviewerChristian Gomez Rua - PeerSpot reviewer
RC
SI
 

Valuable Features

Microsoft Azure Cosmos DB offers scalable, secure, and high-performance features with seamless integration, enhancing application efficiency and global user satisfaction.
Oracle Database as a Service is praised for its multitenancy, scalability, security, analytics, and seamless integration with Oracle applications.
The most valuable feature of Microsoft Azure Cosmos DB is its real-time analytics capabilities, which allow for turnaround times in milliseconds.
Performance and security are valuable features, particularly when using Cosmos DB for MongoDB emulation and NoSQL.
The performance and scaling capabilities of Cosmos DB are excellent, allowing it to handle large workloads compared to other services such as Azure AI Search.
For more quotes and insights, download the Microsoft Azure Cosmos DB report
The encryption level, resilience, and secure features from both clients, particularly the resilience aspect of Oracle Database, are highly valuable.
The valuable features include availability, agility, and scalability.
For more quotes and insights, download the Oracle Database as a Service report
reviewer2227599 - PeerSpot reviewerChristian Gomez Rua - PeerSpot reviewerTiago Duarte - PeerSpot reviewer
SI
reviewer2728149 - PeerSpot reviewer
 

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 Database as a Service
Ranking in Database as a Service (DBaaS)
5th
Average Rating
8.6
Reviews Sentiment
6.9
Number of Reviews
68
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 Database as a Service is 9.1%, up from 8.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Database as a Service (DBaaS)
 

Featured Reviews

MichaelJohn - PeerSpot reviewer
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 - PeerSpot reviewer
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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Top Industries

By visitors reading reviews
Legal Firm
13%
Financial Services Firm
11%
Comms Service Provider
10%
Computer Software Company
10%
Financial Services Firm
22%
Computer Software Company
11%
Retailer
7%
Manufacturing Company
7%
 

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 Database as a Service?
It has significantly enhanced our application development process by introducing substantial time savings and streamlining routine tasks.
See all answers
What is your experience regarding pricing and costs for Oracle Database as a Service?
The setup cost is approximately four hours.
See all answers
What needs improvement with Oracle Database as a Service?
With the advent of generative AI, adding functionality where current administrative activities could be automated would be beneficial. This would help accelerate processes.If we are able to add thi...
See all answers
 

Comparisons

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Pinecone vs Microsoft Azure Cosmos DB
Compared 10% of the time
MongoDB Enterprise Advanced vs Microsoft Azure Cosmos DB Logo
MongoDB Enterprise Advanced vs Microsoft Azure Cosmos DB
Compared 6% of the time
Amazon DynamoDB vs Microsoft Azure Cosmos DB Logo
Amazon DynamoDB vs Microsoft Azure Cosmos DB
Compared 6% of the time
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Compared 6% of the time
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Amazon RDS vs Oracle Database as a Service Logo
Amazon RDS vs Oracle Database as a Service
Compared 44% of the time
Oracle Exadata Cloud at Customer vs Oracle Database as a Service Logo
Oracle Exadata Cloud at Customer vs Oracle Database as a Service
Compared 13% of the time
Microsoft Azure SQL Database vs Oracle Database as a Service Logo
Microsoft Azure SQL Database vs Oracle Database as a Service
Compared 11% of the time
Google Cloud SQL vs Oracle Database as a Service Logo
Google Cloud SQL vs Oracle Database as a Service
Compared 10% of the time
MongoDB Atlas vs Oracle Database as a Service Logo
MongoDB Atlas vs Oracle Database as a Service
Compared 9% of the time
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Product Reports

Buyer's Guide
Microsoft Azure Cosmos DB
August 2025
Microsoft Azure Cosmos DB reportDownload Microsoft Azure Cosmos DB product report
Buyer's Guide
Oracle Database as a Service
August 2025
Oracle Database as a Service reportDownload 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
Buyer's Guide
Microsoft Azure Cosmos DB vs. Oracle Database as a Service
July 2025
Free Report: Microsoft Azure Cosmos DB vs. Oracle Database as a Service
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