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IBM Informix vs MySQL comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Mar 4, 2025

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

IBM Informix
Ranking in Relational Databases Tools
28th
Average Rating
8.2
Reviews Sentiment
7.5
Number of Reviews
17
Ranking in other categories
Embedded Database (9th)
MySQL
Ranking in Relational Databases Tools
5th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
152
Ranking in other categories
Open Source Databases (1st)
 

Mindshare comparison

As of November 2026, in the Relational Databases Tools category, the mindshare of IBM Informix is 1.9%, up from 1.8% compared to the previous year. The mindshare of MySQL is 6.2%, down from 7.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Relational Databases Tools Mindshare Distribution
ProductMindshare (%)
MySQL6.2%
IBM Informix1.9%
Other91.9%
Relational Databases Tools
 

Featured Reviews

Nasir Niamat - PeerSpot reviewer
DB Consultant at i2c
Has offered a cost-effective option despite frequent technical issues and limited market demand
We find some bugs in IBM Informix. Maybe we are using it more aggressively than others. Every month or every second month, we find some bugs in it, which is not ideal. It should be rare, not this frequent. The good thing is they cover those bugs in the next release within weeks or days on demand. IBM Informix should become hybrid and should include AI features similar to other DBMS systems such as Snowflake, Redshift, and DataBricks. This would help its value rise with the market.
Amandeep Pawar - PeerSpot reviewer
Engineer Technology at Iris Software Technologies Private Limited
Careful data design has delivered consistent transactions and supports reliable microservices
MySQL is a reliable and mature relational database, but there are a few areas where it could be improved. One area is horizontal scalability. While MySQL supports scaling for applications, handling write-heavy workloads often requires additional solutions such as sharding, which adds complexity. Another area where it could improve is in native support for advanced analytics and large-scale distributed processing, which may require specialized databases. Changing the database schema on large tables can also be challenging and may require careful planning to minimize downtime. Performance tuning is powerful, but identifying and optimizing slow queries often requires manual analysis and experience. Having more built-in performance insights and automated optimization recommendations would be helpful for administrators. In terms of documentation and security, I think MySQL could be improved in those areas. While the official documentation is comprehensive, it can sometimes be difficult for beginners to navigate, especially for advanced topics such as application partitioning and query optimization. More practical examples and architecture-focused guides would be beneficial. On the integration side, MySQL already works well with frameworks such as Spring Boot and Hibernate, but enhancing support for modern cloud-native deployments, Kubernetes, and automated observability would simplify operations. MySQL is a mature and dependable database, and I hope to see improvements primarily around administration, better operational tooling, and a smoother developer experience rather than fundamental database capabilities.

Quotes from Members

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

Pros

"The solution's stability, performance, enhanced functionality, and replication are all great features."
"Informix can support huge quantities of data with less memory and less capacity."
"We don't have any problems with the Informix Database."
"It supports in-house-built applications in .NET and VB6"
"It is very easy to install IBM Informix, very easy to scale, and support is quite better."
"The scalability is very good."
"IBM Informix benefits users with high availability and good integration capabilities."
"This solution has made financial reporting possible by allowing financial people the opportunity to set Informix to "Auto Pilot" so that they can attend other duties."
"Overall, this is a boon to small to medium database applications."
"We are completely comfortable with the database’s performance and it is a mature product. My organization was looking for an open-source database for our smaller customers like the community edition. For bigger customers, we can scale into commercial and supported editions."
"The solution is very stable, there are no bugs or glitches, it doesn't crash or freeze, and it's reliable."
"For anyone who wants to learn SQL, MySQL is free on Linux, Windows, or Mac Operating Systems."
"My use of MySQL has primarily been from a data integration point of view, a data architecture point of view, and reviewing the database itself, and the data structure, data types."
"The fact that it is free is what appeals to me the most."
"MySQL is compatible with most of the platforms."
"The way that MySQL has improved my organization is that it comes free and also works fine on the technical side."
 

Cons

"I experienced poor input/output (IO) performance."
"I would like to see backups from secondary servers."
"The pricing is a bit expensive."
"This solution is in need of more current tools."
"The solution doesn't include functionality like data anonymization."
"Every month or every second month, we find some bugs in it, which is not ideal."
"This product could be made easier to use for beginners."
"I really would love to have a QT plugin."
"Just be ready though to work at the command line should you wish to use MySQL in its free form."
"On the database side, it should be really lightweight, and the data structure should be like MongoDB."
"MySQL could be improved by adding more automation."
"The GUI could improve in MySQL."
"If the customer is already using or has already used Oracle for a long time they will know the look and feel and the character of this database that can fit into their business."
"The stability could be better. It's not as stable as I would prefer it to be."
"As for areas that could be improved, the tool is often used as a local database on laptops. But now, we're moving to cloud-based solutions that are more scalable and highly available. I think the tool should offer a cloud database option. This would let users keep a local copy of data if needed, but also have their data available across different regions through a cloud account."
"MySQL has some unique exchange problems when it comes to migration projects."
 

Pricing and Cost Advice

"For me, it's always too expensive."
"The free edition can be enough to handle moderate-size implementations, but you may want a pay for edition to benefit from more functionality, such as replication."
"The product has reasonable pricing. We purchase its yearly license."
"I am not aware of the licensing costs or terms."
"The pricing is not much expensive, it's cheap."
"The price of the solution is good because we have a good partner."
"My company uses MySQL's corporate licenses."
"MySQL is released under an open-source license, so you have nothing to pay to use it."
"It is an open source platform."
"MySQL is free."
"When you know the setup will continue to grow, make sure you have the paid support."
"It is free. It is an open-source platform."
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Top Industries

By visitors reading reviews
Comms Service Provider
12%
Construction Company
10%
Outsourcing Company
9%
Financial Services Firm
8%
Outsourcing Company
11%
Manufacturing Company
9%
Financial Services Firm
9%
Comms Service Provider
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise2
Large Enterprise8
By reviewers
Company SizeCount
Small Business75
Midsize Enterprise34
Large Enterprise64
 

Questions from the Community

What is your experience regarding pricing and costs for IBM Informix?
There is a cost reason to move from IBM Informix. It is relatively cheaper than Oracle. The second reason is that moving the whole application to a new database would require significant cost. The ...
What needs improvement with IBM Informix?
We find some bugs in IBM Informix. Maybe we are using it more aggressively than others. Every month or every second month, we find some bugs in it, which is not ideal. It should be rare, not this f...
What is your primary use case for IBM Informix?
We are using IBM Informix for OLTP systems. We are using IBM Informix although it is a technology that is not very popular compared to others. We are using it because our application was initially ...
Why are MySQL connections encrypted and what is the biggest benefit of this?
MySQL encrypts connections to protect your data and the biggest benefit from this is that nobody can corrupt it. If you move information over a network without encryption, you are endangering it, m...
Considering that there is a free version of MySQL, would you invest in one of the paid editions?
I may be considered a MySQL veteran since I have been using it since before Oracle bought it and created paid versions. So back in my day, it was all free, it was open-source and the best among sim...
What is one thing you would improve with MySQL?
One thing I would improve related to MySQL is not within the product itself, but with the guides to it. Before, when it was free, everyone was on their own, seeking tutorials and how-to videos onli...
 

Comparisons

 

Also Known As

Informix
No data available
 

Overview

 

Sample Customers

Shaspa, Hildebrand, Kaifa, Ranhill Powertron, Federaci‹ Farmacutica (FedeFarma), Camden Council, The German Aerospace Center (DLR), Myers, Votorantim Group, Doosan Infracore, GreenIvory
Facebook, Tumblr, Scholastic, MTV Networks, Wikipedia, Verizon Wireless, Sage Group, Glassfish Open Message Queue, and RightNow Technologies.
Find out what your peers are saying about IBM Informix vs. MySQL and other solutions. Updated: November 2026.
920,939 professionals have used our research since 2012.