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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 November 2026, in the Relational Databases Tools category, the mindshare of kdb+ is 1.0%, up from 0.6% compared to the previous year. The mindshare of SQL Server is 10.2%, down from 14.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Relational Databases Tools Mindshare Distribution
ProductMindshare (%)
SQL Server10.2%
kdb+1.0%
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+."
"There is a return on investment because based on analytics, we are reducing the number of people who are doing the analytical part so that it's an automated process, and the data will be available to everyone, including business users."
"SQL Server is quite stable. And now we are using the Lattice 2017 version."
"The most valuable feature is the system architecture."
"Security is obviously the most valuable feature because I can provide certain logins for a particular level of security and I can provide specific permissions for certain logins."
"The initial setup isn't overly complex."
"The solution is stable."
"A great DBMS for organizations of all sizes."
"What I like best about this product is the environment."
 

Cons

"The solution should have a more user-friendly user interface."
"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."
"It may be a licensing issue, but sometimes its operating speed becomes slow if we have multiple users. It's lacking some performance, but it's acceptable because we have a heavy load."
"They can build more performance-tuning tools in it. They can also make the stuff a little more user-friendly and provide the ability to schedule jobs. They can perhaps also streamline it a little bit so that it is not so resource-intensive, which would be helpful. SQL Server has a tendency to consume all the memory you allow it to. If you are not careful, you can basically break your server. I would like to see it having a smaller footprint in terms of system resource consumption. They might want to consider re-evaluating their pricing. It is expensive."
"Their support could be better. There should be more visibility on the progress of the ticket, and their last line of support should be more knowledgeable. Other than that, we have nothing to complain about."
"I think the scalability of the database could be improved if it could handle increased volumes of data."
"There are a few use cases where we do need the Active-Active options instead of Active-Passive, yet those kinds of options are not available for Microsoft."
"Microsoft offers several levels of technical support, which is OK, but not too good."
"Although I am satisfied with the solution, some clients have asked us to resolve technical issues, such as those involving silver solution and replication."
 

Pricing and Cost Advice

Information not available
"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."
"Pricing for this product is very reasonable."
"For medium-sized customers who don't need some enterprise features, the tool would be available for 200 USD per month. For the enterprise segment, the tool's cost can go up to 6,000 USD."
"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."
"It is expensive, especially when you have open-source products that are just about as functional and they're free. They might want to consider re-evaluating their pricing. We purchased it in retail. It was somewhere in the neighborhood of 9,000. There is just the standard licensing fee. If they migrate this product the way they're trying to do everything else, eventually, it is going to be subscription-based, which is going to suck, but that's the way the industry is going, so it is what it is."
"Since we are a cloud-based company, there is AWS pricing on top of the SQL Server pricing. The Enterprise Edition can typically sell from around $1000 dollars a month, which is not cheap. Then, there is an additional one-time Windows cost, based on the code, which can go anywhere from $30,000 to $40,000 for the license."
"The licensing involves a one time fee."
"Our customers do pay license fees for the MS SQL Server but the Rabbit is free, as it is open-source software."
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Top Industries

By visitors reading reviews
Financial Services Firm
37%
Comms Service Provider
10%
Educational Organization
6%
Energy/Utilities Company
6%
Financial Services Firm
34%
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.
920,769 professionals have used our research since 2012.