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Oracle Database In-Memory 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
Oracle Database In-Memory
Ranking in Relational Databases Tools
12th
Average Rating
8.8
Reviews Sentiment
7.1
Number of Reviews
33
Ranking in other categories
Embedded Database (2nd)
 

Mindshare comparison

As of September 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 Oracle Database In-Memory is 2.2%, up from 1.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Relational Databases Tools Mindshare Distribution
ProductMindshare (%)
Oracle Database In-Memory2.2%
kdb+0.9%
Other96.9%
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…
Hosney Osman - PeerSpot reviewer
Technical Solution Architect at Vodafone
Real-time analytics have transformed response times and support huge data volumes with compression
I do not have any comment related to the improvement of the solution; for sure, it needs improvement, but for my use cases, it is very sufficient, and I think for the biggest companies, it needs a very powerful infrastructure. The area where improvement is required the most in the product is the UI. The problem with the UI is that it is not complex for understanding, but it needs some training to know what each button does, how it works, and the many variables needed.

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+."
"We use the tool for real-time data transfer for risk management purposes. In a trading system, conversions happen fast. We use the product to handle fast transactions with low latency."
"Combined with Exadata, it makes a solution that will deliver the best performance related to the volume of data."
"It efficiently handles low-code data and supports read-and-write operations for clustering."
"The valuable features of Oracle Database In-Memory include its capability to bypass disk storage for faster memory operations, which is critical for transactions and analytics."
"The Oracle database is easier to program and manage, and is secure."
"Performance is probably the number one feature, because when we use it for OLTP, the response for the end-user is pretty fast, with website response times in micro milliseconds instead of waiting a few seconds for a page to load."
"Security is the most valuable feature."
"The scalability is very good."
 

Cons

"The solution should have a more user-friendly user interface."
"Multitenant, to be honest, is a little adolescent at this point."
"Technical support is useful with the My Oracle Support website. But when I have to open a service request, I have to find a solution on my own because technical support usually doesn't understand my problem or they always ask for the same logs, same questions, and I ultimately waste my time."
"The query optimization and backup features should be added."
"The platform’s pricing needs improvement."
"We use some partitions in In-Memory. We have a very large table and a low dose. It is very expensive in data to load all of them into In-Memory. It takes up more memory slots in the server, as well as a lot of RAM. We use last partitions on the table. We always need to create a script and make a schedule that can load a last partition in In-Memory. Oracle doesn't have features to do this automatically. I would like them to allow us to load last partitions, as well as other table partitions, in In-Memory. I think a good feature would do that automatically, letting you see a table, load a large partition, and monitor loading memory. It's quite a good feature."
"It's good and it functions, but it's not the easiest add-on to Database to work with."
"For some reason, the stats optimizer doesn't work well. We had to disable some of the Oracle’s new features that are not quite mature."
"The solution should move to the new way of writing software code with AI that is intelligent and learns."
 

Pricing and Cost Advice

Information not available
"Database In-Memory is priced a bit higher than its competitors like Microsoft."
"Oracle Database In-Memory is expensive."
"The solution's pricing is high."
"It's quite costly and it comes with a fixed price."
"The product is expensive."
"The platform's licensing cost needs improvement."
"There is a need to make a yearly payment towards the licensing costs, after which there is any to pay towards the support cost attached to the solution."
"I rate the pricing a zero out of ten because Database In-Memory is too costly."
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Top Industries

By visitors reading reviews
Financial Services Firm
42%
Comms Service Provider
9%
Educational Organization
5%
Energy/Utilities Company
5%
Financial Services Firm
12%
Comms Service Provider
11%
Outsourcing Company
9%
Construction Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise4
Large Enterprise23
 

Questions from the Community

Ask a question
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What needs improvement with Oracle Database In-Memory?
I do not have any comment related to the improvement of the solution; for sure, it needs improvement, but for my use cases, it is very sufficient, and I think for the biggest companies, it needs a ...
What is your primary use case for Oracle Database In-Memory?
The major use case for Oracle Database In-Memory is real-time applications that need a fast response between the application and the database directly without any latency.
 

Comparisons

 

Overview

 

Sample Customers

UniCredit, AIRBUS
Shanghai Customs
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