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SQL Server vs kdb+ comparison

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Comparison Buyer's Guide

Executive Summary

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

kdb+
Ranking in Relational Databases Tools
40th
Average Rating
9.0
Number of Reviews
1
Ranking in other categories
No ranking in other categories
SQL Server
Ranking in Relational Databases Tools
1st
Average Rating
8.4
Reviews Sentiment
6.5
Number of Reviews
276
Ranking in other categories
Database Management Systems (DBMS) (2nd)
 

Mindshare comparison

As of October 2026, in the Relational Databases Tools category, the mindshare of kdb+ is 0.9%, up from 0.5% compared to the previous year. The mindshare of SQL Server is 10.3%, down from 15.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Relational Databases Tools Mindshare Distribution
ProductMindshare (%)
SQL Server10.3%
kdb+0.9%
Other88.8%
Relational Databases Tools
 

Featured Reviews

Nitin Garg - PeerSpot reviewer
Vice President - Financial Services at Evalueserve
An easy-to-deploy solution that can be used for data ingestion and usage
I work for a fintech company where we create several strategies generally built on finance data, which are like one-time series data. We deal with huge bulk data on a daily basis, and we use kdb+ for data ingestion and usage The most valuable feature of kdb+ is the speed at which it returns the…
Shakti Gupta - PeerSpot reviewer
SQL server database administrator at a tech vendor with 10,001+ employees
Hybrid data platform has strengthened performance, security, and incident response for production
SQL Server is very mature, but I see areas for improvement, especially in performance tuning, troubleshooting, and automation. Although tools such as Query Store and dynamic management views are powerful, some troubleshooting tasks still require senior SQL Server database administrator expertise. It would be valuable to have more intelligent, built-in recommendations for root cause analysis, indexing, blocking, and query optimization. I would also like to see simplified and consistent management across on-premises SQL Server and Azure SQL services, as managing hybrid environments sometimes requires different tools and approaches. Finally, improved patching, updates, monitoring, and cost and license transparency could make SQL Server easier to manage at the enterprise scale. One area I would improve in SQL Server is its documentation and troubleshooting guidance. SQL Server documentation is comprehensive, but for complex production issues, I would like to see more real-world troubleshooting examples, especially for scenarios such as Always On synchronization issues, blocking and deadlocks, performance degradation, and upgrade features.

Quotes from Members

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

Pros

"The solution returns data quickly, and data retrieval is fast in kdb+."
"I find query optimization to be highly valuable for data management. Additionally, drag-and-drop query creation greatly facilitates data management tasks."
"Overall, we've had a positive experience with the solution."
"It is easy to deploy and easy to maintain."
"Many developers like SQL Server."
"It is easy to use and easy to perform a backup."
"We have found the feature that allows us to publish web applications to be valuable."
"It provides the ability to create an end-to-end automated BI platform through data management and provisioning, transformation and publication."
"The basic features of the solution are excellent overall."
 

Cons

"The solution should have a more user-friendly user interface."
"When we are talking about event space architecture, scalability generally comes into play. For example, I might have a hundred thousand transactions a second, and then all of a sudden, I build something that everybody in the world wants. The next thing I know is that I have a million transactions a second. So, to be able to process the throughput, I'd have to scale up, and then when the holidays are over, I'm again down to a hundred thousand transactions, and I want to scale back down. SQL Server is not going to do that. In this way, it is not very scalable. One of the reasons why they want us to use Kafka is so that if we need to, we can do that, but our base program is on SQL Server. So, this is where we would use a Kafka event stack so that if I need more servers, I can just write a command, and I can have more consumers, more brokers, and more producers, and when the holiday season is over, it scales right back down again. SQL Server is not going to do that."
"We pay a license fee, it could always be cheaper."
"The price could be better. In the next release, it would be better if the database was more easily extendable."
"Reloading all the data in a database can cause potential data loss especially when the size of database is large."
"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, which restricts me from giving a perfect 10, as post-sales service is crucial."
"The solution could offer more integration with other platforms."
"Only one CPU core can be used. Can’t move a database between servers easily. Can’t use triggers."
"Integration Services: There is a great deal of room for improvement here in that the packages are the least extensible part of the platform."
 

Pricing and Cost Advice

Information not available
"It comes with the bundle package that we have. We have Microsoft Volume Licensing, so we don't have to pay for it separately. It is a part of the package."
"The price of the solution is very expensive. If I went with the cloud version of SQL a license would cost me approximately 11,000 Riyals per month."
"There is a license required for this solution. One of the problems is for smaller businesses to purchases a license because it is expensive for a lot of them to afford."
"For a brief period, approximately one year before 2018, I had experience working with the open-source version of SQL Server. During that time, I found SQL Server to be the preferred choice, in my opinion."
"The licenses are purchased annually."
"There is a license required for this solution."
"The cost associated with SQL Servers is on the higher side."
"The solution is on a pay-per-use pricing model."
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Top Industries

By visitors reading reviews
Financial Services Firm
38%
Comms Service Provider
10%
Educational Organization
6%
Energy/Utilities Company
6%
Financial Services Firm
35%
Outsourcing Company
10%
Manufacturing Company
7%
Construction Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business119
Midsize Enterprise60
Large Enterprise122
 

Questions from the Community

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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

UniCredit, AIRBUS
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 Microsoft, Oracle, SAP and others in Relational Databases Tools. Updated: October 2026.
917,403 professionals have used our research since 2012.