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SQL Server vs kdb+ comparison

 

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
37th
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
6.6
Number of Reviews
274
Ranking in other categories
Database Management Systems (DBMS) (1st)
 

Mindshare comparison

As of June 2026, in the Relational Databases Tools category, the mindshare of kdb+ is 0.9%, up from 0.4% compared to the previous year. The mindshare of SQL Server is 10.6%, down from 17.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Relational Databases Tools Mindshare Distribution
ProductMindshare (%)
SQL Server10.6%
kdb+0.9%
Other88.5%
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…
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.

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+."
"The stability is great; it's very reliable, there are no bugs or glitches, and it doesn't crash or freeze."
"From my point of view, using SQL Server 2017 and 2019 is very good."
"Stability is one of the most valuable features."
"Since MongoDB, we have come up and there are lots of tools that do enhance the database management system or keep an eye on our data."
"I like the stability of the solution, the fact that you have two, three, four nodes replicating at any given time at different locations, and they're all synchronized; if one is lost it automatically moves to another."
"I find SQL Server's ability to integrate with other Microsoft services, such as Azure, in supporting business intelligence and data analytics workflows to be excellent."
"For the most part, we have been satisfied with its capabilities."
"It's a very stable solution."
 

Cons

"The solution should have a more user-friendly user interface."
"The thing I don't like is, I know a lot of people don't know about the backend security of SQL. They think others cannot get into their system and I tell them they can, they have the SA password."
"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."
"SQL Server doesn't have proper bitmap indexing, a proper columnar database version, or proper implementation of materialized views."
"In terms of exceptionally large databases, it doesn't scale as well as Oracle."
"We had some difficulty doing the performance tuning when we migrated from the 2008 version to the 2016 version, as we experienced a drop in performance and could not understand or figure out what caused it."
"The solution is expensive. The licensing costs are high."
"Occasionally the performance, as good as it is, is a bit off."
"Reloading all the data in a database can cause potential data loss especially when the size of database is large."
 

Pricing and Cost Advice

Information not available
"We're looking at alternative solutions because we think Microsoft's licensing costs have been expensive."
"The product's price is reasonable."
"It is annual."
"On a scale from one to ten, where one is cheap and ten is expensive, I rate the solution's pricing a seven out of ten."
"The price of the solution could be cheaper."
"For licensing, we pay yearly. The licensing is very expensive, and it should be cheaper."
"Cost is a major derivative for any organization. It has a reasonable cost value, and its cloud support is also better than others. Comparatively, Oracle can do the same things or is even better in certain areas, but it is expensive. The cost along with the support are the plus factors for SQL Server."
"We pay per second of usage, but there are different offerings of the license."
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Top Industries

By visitors reading reviews
Financial Services Firm
43%
Computer Software Company
6%
Energy/Utilities Company
6%
Manufacturing Company
6%
Financial Services Firm
39%
Manufacturing Company
7%
Construction Company
6%
Comms Service Provider
4%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business119
Midsize Enterprise60
Large Enterprise118
 

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: May 2026.
900,644 professionals have used our research since 2012.