Try our new research platform with insights from 80,000+ expert users

IBM Informix vs SQL Server comparison

 

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
21st
Average Rating
8.6
Reviews Sentiment
7.7
Number of Reviews
16
Ranking in other categories
Embedded Database (10th)
SQL Server
Ranking in Relational Databases Tools
1st
Average Rating
8.4
Reviews Sentiment
6.8
Number of Reviews
270
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of September 2025, in the Relational Databases Tools category, the mindshare of IBM Informix is 1.9%, up from 1.6% compared to the previous year. The mindshare of SQL Server is 15.8%, down from 22.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Relational Databases Tools Market Share Distribution
ProductMarket Share (%)
SQL Server15.8%
IBM Informix1.9%
Other82.3%
Relational Databases Tools
 

Featured Reviews

Nazzareno Maria Rezzini - PeerSpot reviewer
Supports multiple business intelligence tools, but the technical support services need improvement
IBM Informix is a central database solution across various environments, supporting multiple applications and business intelligence tools The key areas for improvement revolve around understanding the current customer trends and demands, particularly in software and database requirements. The…
Gus Mtz - PeerSpot reviewer
Availability and financial reporting thrive with robust integration tools
The best features of SQL Server are availability and stability. We never have concerns about the database. The ability of SQL Server to integrate with other Microsoft services, such as Azure for supporting business intelligence or data analytics, is primarily through Power BI for analytics tools. We use Power BI, but not in the cloud. We have interfaces with other databases. We extensively use the ETL tools of SQL Server for integrating with other databases or text files. The ETL tools are excellent for making jobs that run daily or hourly. For disaster recovery features supporting mission-critical applications in our organization, we have implemented the high availability feature of SQL Server. The always-on feature provides high availability in SQL Server. We use this tool daily for our risk management application.

Quotes from Members

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

Pros

"Replication is a valuable feature and easy to use."
"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."
"For IoT business cases, having Informix Enterprise Edition work on edge computers, like Raspberry Pi and using Informix replication, makes complex situations simple to build and maintain."
"Replication, all levels of replication, query charting, and the MongoDB embedded are the most valuable features of this solution."
"The most valuable feature is concurrency and locking because my customers usually use databases in OLTP mode. So, for a large number of competitive users. Other features that are well valued are quick large-scale data types. It is better than Oracle."
"It supports multiple applications and business intelligence tools."
"Every version is faster than the previous."
"The performance is great."
"Microsoft SQL Server is one of the better database administration software packages out there. It runs primarily on Windows Server platforms, but it can also run on Linux platforms."
"Very easy to use, and it's very democratic in the enterprise."
"The ability to see tables, reviews, and custom script options is good."
"The backups are excellent."
"I find query optimization to be highly valuable for data management. Additionally, drag-and-drop query creation greatly facilitates data management tasks."
"The most valuable features are programmability and reliability."
"SQL Server, a widely adopted database management system, is utilized across numerous sectors. Initially competing with Oracle and Db2, SQL Server has gained popularity. It serves as the backend database for a variety of applications."
 

Cons

"The pricing is a bit expensive."
"The solution lacks some functionality."
"I would like to see backups from secondary servers."
"The support team could include local engineers to establish efficient communication. It will help us speed up the escalation process."
"This solution is in need of more current tools."
"The solution really doesn't add new features very often."
"There should be more intelligence surrounding discovering data to be able to automatically create indexes."
"I experienced poor input/output (IO) performance."
"The way SQL Server pivots data could be improved. For example, I would like built-in comma-separated pivot and unpivot functions."
"I would say that people should know how to get a SQL setup in place since it might be an area where they lack when it comes to the solution."
"Right now we don't get much technical support from Microsoft"
"There are a lot of improvements in the cloud space about which we open a case with Microsoft every now and then. These improvements are not in terms of features or functionality. They are more related to their own compatibility or connectivity on which they keep on working to improve the product."
"SQL Server could improve by having better usability or user guidance."
"The solution is expensive. The licensing costs are high."
"It could be more stable."
"I would like to see more integration with other platforms."
 

Pricing and Cost Advice

"For me, it's always too expensive."
"The product has reasonable pricing. We purchase its yearly license."
"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."
"I am not aware of the licensing costs or terms."
"There is a license required for this solution."
"We are on an annual enterprise license for the solution and the cost of the license could be reduced."
"The free version is cumbersome to use and maintain. But $5000 for a licence is more expense than the benefit I would get from a licensed version. A licence might be worth the price to simplify management and speed up searches."
"Licensing fees increase depending on size and performance. If you want higher performance, you should go for a different course."
"The enterprise-level license agreement is very complicated."
"The price could be better. Aside from the basic features, if you need any additional features that can be extended, for example, if you want to connect with the heterogeneous databases, they are being managed as separate services and not included in the package. If you manage a database in Azure, it's not providing SFS and reporting services. However, on-premises, if you purchase the SQL Server license, it includes SFIS and SFRS services. If you take Postgre SQL and MySQL, they provide almost all the same features even though they are both open source databases."
"We are on a monthly subscription and the price could improve. However, the price has worked out well in some deployments. The problem is you never know what kind of services been installed and you have to be in touch with many people, such as which servers are active or which are not. I did face a couple of issues in terms of subscriptions and the pricing model. They have improved over time."
"There is an annual license and it is priced reasonably."
report
Use our free recommendation engine to learn which Relational Databases Tools solutions are best for your needs.
867,676 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
10%
Computer Software Company
10%
Manufacturing Company
6%
Comms Service Provider
6%
Financial Services Firm
15%
Computer Software Company
12%
Manufacturing Company
9%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise2
Large Enterprise7
By reviewers
Company SizeCount
Small Business121
Midsize Enterprise58
Large Enterprise112
 

Questions from the Community

What do you like most about IBM Informix?
It supports multiple applications and business intelligence tools.
What is your experience regarding pricing and costs for IBM Informix?
The product has reasonable pricing. We purchase its yearly license.
What needs improvement with IBM Informix?
The key areas for improvement revolve around understanding the current customer trends and demands, particularly in software and database requirements. The product's performance could be better com...
Would you say the price of SQL Server is high compared to that of similar products?
SQL Server is fairly priced because it has various editions, depending on the number of users, servers, or core packs you are using. If you compare the product to others in this category, the price...
Has using SQL Server helped your organization in any way?
SQL Server has helped my organization through partitioning to distribute the workload, as it splits them up into smaller pieces so the machines can easily deal with it. However, this comes with a h...
Which authentication mode is best for SQL Server?
My company connects through SQL Server authentication. We have company Windows accounts, but we do not want to connect the two, out of security concerns and to keep things separated for our own pur...
 

Comparisons

 

Also Known As

Informix
Microsoft SQL Server, MSSQL, MS SQL
 

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
Microsoft SQL Server is used by businesses in every industry, including Great Western Bank, Aviva, the Volvo Car Corporation, BMW, Samsung, Principality Building Society, Wellmark Blue Cross and Blue Shield, and the Catholic District School Board of Eastern Ontario.
Find out what your peers are saying about IBM Informix vs. SQL Server and other solutions. Updated: September 2025.
867,676 professionals have used our research since 2012.