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MySQL vs SQL Server comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jul 27, 2025

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
6.3
Users experience varied ROI with MySQL due to its open-source nature, cloud or local use, and operational benefits.
Sentiment score
7.3
SQL Server offers high ROI through cost-effectiveness, automation, and ease of deployment, with returns often within a year.
All applications need our repository to provide services for our online business or our customers, so the return is good.
 

Customer Service

Sentiment score
6.8
MySQL support is mostly community-driven and free, but Oracle's support, while effective, can be costly for smaller businesses.
Sentiment score
6.5
Microsoft support offers valuable online resources, but experiences vary with concerns about wait times and language issues.
We have no issues and usually receive timely responses.
When we created support tickets, the experience was very positive.
 

Scalability Issues

Sentiment score
6.7
MySQL is scalable for small to medium projects but requires enhancements and tools for effective large-scale deployment.
Sentiment score
7.0
SQL Server is generally scalable and effective, but large datasets and costs pose challenges requiring maintenance and infrastructure adjustments.
Meeting scalability requirements through cloud computing is an expensive affair.
The server where we installed it has grown from 64 gigabytes in RAM to 256 gigabytes, demonstrating significant scalability capabilities.
 

Stability Issues

Sentiment score
7.7
MySQL is widely praised for reliability and performance, but occasional issues with large tables require proper maintenance and configuration.
Sentiment score
7.6
SQL Server is highly stable and reliable, with most issues resolved by updates, receiving high satisfaction ratings.
We face certain integration issues, especially when we integrate the database with security solutions like IBM QRadar.
 

Room For Improvement

MySQL needs scalability improvements, better replication, enhanced security, integration, and upgraded tools, procedures, user interface, and documentation.
SQL Server needs better pricing, integration, security, performance, and support, with improvements in Management Studio, encryption, and cloud services.
The load balancer, MySQL LB, which is used to connect to the application, lacks clear documentation.
Oracle could improve on scalability.
It could be more beneficial if MySQL can enhance its data masking functionality in the same way it has improved data encryption.
I would appreciate using Microsoft Pro as it can integrate with Excel or, with a simple query, consume information from the database using Microsoft Excel.
When we consider the price for replication in another site, the pricing becomes prohibitive.
 

Setup Cost

Enterprise buyers appreciate MySQL's flexible pricing, noting affordable options compared to Microsoft SQL Server or Oracle.
SQL Server pricing is costly but cheaper than Oracle, with various licensing options and a free Developer Edition available.
Oracle has different components, so if you need security, you have to procure a different license, but here everything is inbuilt and it's not costly.
 

Valuable Features

MySQL is popular for being open-source, SQL-compatible, scalable, easy to manage, cross-platform, with strong integration capabilities.
SQL Server offers dynamic resource allocation, high availability, performance, security, integration, ease of use, scalability, and extensive support.
With Oracle, we have to buy another solution for encryption and masking, but MySQL supports native encryption, which enhances our return on investment.
It's an inbuilt feature of the database itself, and you don't have to purchase an additional license for the replication.
It allows programming, writing stored procedures, creating views, constraints, and triggers easily.
The always-on feature provides high availability in SQL Server.
I have been working with SQL Server for a long time, and it works well for me as I am using it in different applications, such as web applications, Windows applications, or the data warehouse reporting.
 

Categories and Ranking

MySQL
Ranking in Relational Databases Tools
5th
Average Rating
8.2
Reviews Sentiment
7.4
Number of Reviews
150
Ranking in other categories
Open Source Databases (1st)
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 MySQL is 7.6%, down from 7.9% 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%
MySQL7.6%
Other76.6%
Relational Databases Tools
 

Featured Reviews

Prabir Kumar Kundu - PeerSpot reviewer
Offers robust security and availability with impressive replication capabilities
Regarding their documentation and interface, there is room for improvement. Documentation is definitely required when running multiple databases on a cluster system. The load balancer, MySQL LB, which is used to connect to the application, lacks clear documentation. When there are multiple application servers connecting to the MySQL cluster and going through the MySQL load balancer, the documentation is not user-friendly. It's there, but only technical persons with deep knowledge of the MySQL database can implement it. Most of the community users or ISVs who use MySQL don't have many technical persons or DBA experts, so they face some challenges for the high availability of connecting high available databases from high available applications. That documentation should be simplified.
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.
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
10%
Manufacturing Company
7%
Educational Organization
6%
Financial Services Firm
15%
Computer Software Company
12%
Manufacturing Company
10%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business73
Midsize Enterprise31
Large Enterprise61
By reviewers
Company SizeCount
Small Business121
Midsize Enterprise58
Large Enterprise112
 

Questions from the Community

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...
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

No data available
Microsoft SQL Server, MSSQL, MS SQL
 

Overview

 

Sample Customers

Facebook, Tumblr, Scholastic, MTV Networks, Wikipedia, Verizon Wireless, Sage Group, Glassfish Open Message Queue, and RightNow Technologies.
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 MySQL vs. SQL Server and other solutions. Updated: September 2025.
867,445 professionals have used our research since 2012.