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Azure Database for PostgreSQL vs IBM Db2 on Cloud comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jun 3, 2026

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

Azure Database for PostgreSQL
Ranking in Database as a Service (DBaaS)
5th
Average Rating
8.8
Reviews Sentiment
6.3
Number of Reviews
24
Ranking in other categories
Open Source Databases (4th)
IBM Db2 on Cloud
Ranking in Database as a Service (DBaaS)
20th
Average Rating
8.6
Reviews Sentiment
7.3
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Database as a Service (DBaaS) category, the mindshare of Azure Database for PostgreSQL is 3.8%, up from 2.0% compared to the previous year. The mindshare of IBM Db2 on Cloud is 2.0%, up from 1.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Database as a Service (DBaaS) Mindshare Distribution
ProductMindshare (%)
Azure Database for PostgreSQL3.8%
IBM Db2 on Cloud2.0%
Other94.2%
Database as a Service (DBaaS)
 

Featured Reviews

Sathish Palanisamy - PeerSpot reviewer
Staff Data Engineer at a transportation company with 10,001+ employees
Improves database performance, supports AI integration, and accelerates customer-focused innovation
Azure Database for PostgreSQL can be improved in the area of elastic capabilities. One of the things we were actively looking for is the elastic feature, which was made a GA at this Ignite event. I am really happy that finally in Azure, we have a product which we can use for elastic clusters. If you are bound with a single server, then you have a vertical limit. Now you do not have any limits. As long as your use case grows, we can grow. The only thing I would maybe be thinking about is we should also allow customers to pick different node sizes for every node inside the elastic eventually. Some nodes do not need that big capacity. So that may be a nice-to-have feature, though it is not a must-have at this point.
FM
Database Engineer at Meezan Bank
Multi-node architecture and it is good from a security point of view
I would rate the stability a seven out of ten. Most of the issues we faced during troubleshooting were due to specific bugs in the environment, and the only solution was to upgrade the database environment or services. But it is not easy to upgrade the database level when third-party applications are involved, as they are not always comfortable with upgrading. There should be some cumulative solution provided by IBM for their customers, just like other vendors. Upgrading to a certain version doesn't always resolve the issue. It might get resolved at the database level, but what about the other applications integrated with that database that are only compatible with older versions?

Quotes from Members

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

Pros

"Automatic patching and backups have saved us time; anything automatic is a blessing—it allows us to be hands-off, and the reliability has been very good with it."
"What I appreciate most about Azure Database for PostgreSQL is not one particular feature; I think it is the use case and the facility to have a single pane of glass for managing what is on the edge, what is on the cloud, especially now with Azure Local as well."
"A native cloud approach actually has more advantage because it is easy to deploy, faster to deploy, and easy to recover and roll back."
"Horizontal scaling has helped manage our workloads, making it easier for us to stay cost-efficient while also scaling when we get more traffic on our application."
"We use PostgreSQL to speed up application development. Our applications are ready sooner because we don't need to depend on other database teams."
"If a client is looking to check these boxes—performance, speed, reliability, and resiliency in general—knowing that it will satisfy application needs not just today but in the future, it is definitely a choice."
"Postgres has helped us innovate and stay competitive."
"Azure Database has become easier to use over time."
"The reliability is the most valuable feature. It is also user-friendly."
"Multiple business departments rely on reports and predictive analysis to make decisions for future business based on their data warehouse and Db2 network analytics tool. It helps our business department make decisions."
 

Cons

"I would add that from my perspective, Microsoft technical support isn't great; we have tickets sitting in the bucket."
"They can offer more RAG extensions. Currently, it only has the vector search."
"In the future, I would like to see anomaly detection."
"We would love to definitely see scalability. We would love to see it grow as more people use it and it can handle the data and maybe tell us some optimizations by reporting on what we have."
"Support at best is a five out of ten."
"Azure Database for PostgreSQL has not really helped reduce infrastructure costs at my company."
"My impressions of the latency and availability of Azure Database for PostgreSQL is that it is a concern that arises post-migration."
"The critical service is the Azure OpenAI service. It would help to make it simpler and easier to integrate with that or cognitive services."
"I would give their support a ten if they had more tutorials available."
"Nobody is going to like the price."
"In other environments like Oracle or Teradata, they provide their own solutions for troubleshooting issues. They provide built-in AI services or autonomous databases, which I don't see in the Db2 environment."
 

Pricing and Cost Advice

"The pay-as-you-go pricing model plays a critical role in managing database-related costs and resource allocation. We build using Infrastructure as Code (IAC) and maintain a focus on FinOps to control Azure service costs. Some clients are pushy on price. It's critical to automate it, so we're just using it when appropriate and switching it off in certain scenarios."
"We do not pay for a full-year subscription because our usage is still at the beginning phase and not much. The pay-as-you-go model works well for us."
"There aren't any notable areas for improvement that I could see. PostgreSQL was self-sufficient with no need for additional database knowledge to maintain it."
"The pricing experience is positive. Azure Database for PostgreSQL reduces the need for hardware investments, and the pay-as-you-go pricing model positively affects database-related costs by allowing us to start small and scale as needed."
Information not available
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Top Industries

By visitors reading reviews
Financial Services Firm
14%
Comms Service Provider
12%
Manufacturing Company
11%
Marketing Services Firm
9%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise4
Large Enterprise16
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Azure Database for PostgreSQL?
My experience with pricing, setup costs, and licensing for Azure Database for PostgreSQL is positive; I appreciate it all. The pricing is very cost-effective and stable given that we have many data...
What needs improvement with Azure Database for PostgreSQL?
Azure Database for PostgreSQL can be improved in ways I'm very curious to explore with Horizon. I'm interested in seeing how the fully enterprise-hardened features change things and where that blur...
What is your primary use case for Azure Database for PostgreSQL?
My main use cases for Azure Database for PostgreSQL came from a personal project to scratch an itch, and it was the easiest one to go grab. I appreciate how easy PostgreSQL is to get running locall...
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Overview

 

Sample Customers

Information Not Available
Owens-Illinois, KONE Corp., Cambridgeshire Fire and Rescue, Canon Europe, Delhaize America, Wimbledon
Find out what your peers are saying about Azure Database for PostgreSQL vs. IBM Db2 on Cloud and other solutions. Updated: August 2026.
909,725 professionals have used our research since 2012.