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MariaDB vs SQL Server comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 2, 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
MariaDB offers high ROI with cost savings, robust features, and community support enhancing functionality and flexibility.
Sentiment score
7.2
Organizations experience significant returns and financial advantages with SQL Server, preferring its cost-effectiveness and analytics over Oracle.
SQL Server is the most cost-effective with good human resource availability to manage it.
Manager - Production Database Administration at a tech vendor with 10,001+ employees
All applications need our repository to provide services for our online business or our customers, so the return is good.
Infrastructure Coordinator at a financial services firm with 10,001+ employees
With Standard edition, they have saved a ton of money and they are really happy about that.
Data Warehouse Lead at Resurs Bank AB (publ.)
 

Customer Service

Sentiment score
6.2
MariaDB customer service is praised for support but some rely on community resources or find response times slow.
Sentiment score
6.5
Microsoft's technical support is reliable, praised for responsiveness, though communication and on-premise SQL Server support may need improvement.
Compared to MongoDB, there are some platform deficiencies, but the support team shouldn't bear that burden.
Co-Founder at Vsigma IT Labs Pvt Ltd
There was a time when Microsoft support provided very crisp answers, but over time, they have diluted their support to third parties, leading to a drop in support quality.
Manager - Production Database Administration at a tech vendor with 10,001+ employees
I give their technical support a rating of ten out of ten.
Data Warehouse Lead at Resurs Bank AB (publ.)
When we created support tickets, the experience was very positive.
Subdirector of Support for Production at Servicios Electrónicos Globales -Oficial
 

Scalability Issues

Sentiment score
7.0
MariaDB is generally scalable, though challenges in larger environments require manual configuration and specific setups for optimal performance.
Sentiment score
7.1
SQL Server is highly scalable, especially in the cloud, though performance may vary with complex applications and configurations.
The server where we installed it has grown from 64 gigabytes in RAM to 256 gigabytes, demonstrating significant scalability capabilities.
Subdirector of Support for Production at Servicios Electrónicos Globales -Oficial
Most of the time, they simply add another node in the availability group.
Data Warehouse Lead at Resurs Bank AB (publ.)
I can scale both horizontally and vertically without challenges.
Manager - Production Database Administration at a tech vendor with 10,001+ employees
 

Stability Issues

Sentiment score
7.8
MariaDB is stable with minimal maintenance needed but clustering can be challenging; separation from other systems is advisable.
Sentiment score
7.6
SQL Server is reliable and stable, performing well in transactions despite occasional performance and deployment challenges.
We haven't found issues with the stability of MariaDB.
Co-Founder at Vsigma IT Labs Pvt Ltd
There were critical repercussions from this issue, as the databases decreased in size immensely, filling the disk and causing everything to stop.
Data Warehouse Lead at Resurs Bank AB (publ.)
All applications supporting SQL Server in my experience work very well across various industries including telecom, finance, banking, ad, entertainment, and workforce management.
Manager - Production Database Administration at a tech vendor with 10,001+ employees
 

Room For Improvement

MariaDB needs enhancements in integration, scalability, performance, security, and features like clustering and materialized views for enterprise use.
SQL Server faces criticism for requiring Internet Explorer, high licensing costs, complex operations, and lacking scalability and compatibility.
MariaDB is scalable and easy to scale.
Co-Founder at Vsigma IT Labs Pvt Ltd
It is fine to do a first release that works, but you cannot simply abandon it in the following years without service packs and improvements.
Data Warehouse Lead at Resurs Bank AB (publ.)
One long-pending request from Microsoft is for two-node write capabilities, as currently, I can write from one node and read from multiple nodes.
Manager - Production Database Administration at a tech vendor with 10,001+ employees
When we consider the price for replication in another site, the pricing becomes prohibitive.
Subdirector of Support for Production at Servicios Electrónicos Globales -Oficial
 

Setup Cost

MariaDB's open-source nature minimizes costs, offering free and paid versions, making it budget-friendly compared to Oracle.
SQL Server offers high initial costs but delivers value in features, scalability, and ROI, and is cheaper than Oracle.
MariaDB is in the pricey range, especially for huge databases handling terabytes of data.
Co-Founder at Vsigma IT Labs Pvt Ltd
Cost savings on human resources for Windows plus SQL Server versus other solutions.
Manager - Production Database Administration at a tech vendor with 10,001+ employees
 

Valuable Features

MariaDB is favored for its open-source, speed, scalability, advanced features, compatibility, tech integration, and strong community support.
SQL Server offers robust features, ease of use, and reliability, ideal for organizations needing effective database management and optimization.
Configuration, setup, and schema design are good features in MariaDB.
Co-Founder at Vsigma IT Labs Pvt Ltd
Always On HADR functionality is one of the features that I use on a daily basis and one of my most used features, saving me lots of time, especially since previously I had to build a SQL cluster and Windows clusters that had many dependencies on shared infrastructure, but now with Always On, it is too stable with easy management and almost zero maintenance, which SQL Server handles itself.
Manager - Production Database Administration at a tech vendor with 10,001+ employees
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.
Infrastructure Coordinator at a financial services firm with 10,001+ employees
The best features of SQL Server are availability and stability.
Subdirector of Support for Production at Servicios Electrónicos Globales -Oficial
 

Categories and Ranking

MariaDB
Ranking in Relational Databases Tools
7th
Average Rating
8.2
Reviews Sentiment
6.8
Number of Reviews
60
Ranking in other categories
Open Source Databases (7th)
SQL Server
Ranking in Relational Databases Tools
1st
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
272
Ranking in other categories
Database Management Systems (DBMS) (4th)
 

Mindshare comparison

As of January 2026, in the Relational Databases Tools category, the mindshare of MariaDB is 4.7%, down from 7.5% compared to the previous year. The mindshare of SQL Server is 12.1%, down from 19.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Relational Databases Tools Market Share Distribution
ProductMarket Share (%)
SQL Server12.1%
MariaDB4.7%
Other83.2%
Relational Databases Tools
 

Featured Reviews

AB
Co-Founder at Vsigma IT Labs Pvt Ltd
Has supported web application data needs but requires design adjustments to manage complex queries efficiently
Complex queries in MariaDB where the query needs to parse thousands of lines or data values face some performance issues. For small and medium-size volume, it is pretty good. If it goes beyond certain data and complex queries, we see performance issues. We tried the advanced replication feature between different regions, replicating data specifically residing on MariaDB to two different regions of MariaDB data, and there were some technical snags in terms of slowness and longer processing time. Point-in-time recovery in MariaDB is good for small databases. When data volume increases beyond 5 GB or 10 GB per day or runs into double-digit GBs, we found some performance issues. For data below 10 GB, it works fine. Performance is the primary focus area for MariaDB, particularly during transactions or complex query jobs where slow performance is observed. MariaDB is scalable and easy to scale.
Peter Larsson - PeerSpot reviewer
Data Warehouse Lead at Resurs Bank AB (publ.)
Ledger and seamless integrations have strengthened trusted analytics and unified workloads
SQL Server's high availability and disaster recovery features work for supporting mission-critical applications, but there is much more to wish for. These features are not quite ready yet, although they do function. However, they could be significantly better. High availability and disaster recovery features should be improved in the next releases. I have noticed that everything could be improved or enhanced in the future, particularly temporal tables and window functions. Sometimes, I believe Microsoft releases features to stay ahead of competitors, but they do not make them feature-rich or feature-complete. They release something to be ahead of leaders and then seem to forget to maintain and upgrade them. I want Microsoft to pay more attention and be more mindful about the things they implement. It is fine to do a first release that works, but you cannot simply abandon it in the following years without service packs and improvements. You must continue to build on features rather than forgetting about them.
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
11%
University
9%
Comms Service Provider
9%
Financial Services Firm
38%
Computer Software Company
8%
Manufacturing Company
7%
Government
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business27
Midsize Enterprise12
Large Enterprise25
By reviewers
Company SizeCount
Small Business119
Midsize Enterprise59
Large Enterprise115
 

Questions from the Community

What do you like most about MariaDB?
The integration with other products is seamless.
What is your experience regarding pricing and costs for MariaDB?
MariaDB is in the pricey range, especially for huge databases handling terabytes of data. The cost depends on the volume of data and different features enabled during configuration, such as backup ...
What needs improvement with MariaDB?
Complex queries in MariaDB where the query needs to parse thousands of lines or data values face some performance issues. For small and medium-size volume, it is pretty good. If it goes beyond cert...
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

Google, Wikipedia, Tencent, Verizon, DBS Bank, Deutsche Bank, Telefónica, Huatai Securities
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 MariaDB vs. SQL Server and other solutions. Updated: December 2025.
879,711 professionals have used our research since 2012.