Oracle Database In-Memory vs kdb+ comparison

Kx Systems and Oracle are both solutions in the Relational Databases Tools category. Kx Systems is ranked #25 with an average rating of 9.0, while Oracle is ranked #9 with an average rating of 9.2. Kx Systems holds a 0.4% mindshare in SQL, compared to Oracle’s 1.7% mindshare. Additionally, 100% of Kx Systems users are willing to recommend the solution, compared to 100% of Oracle users who would recommend it.

kdb+

Read 1 kdb+ review

287 Views
78 Comparison Views

100% willing to recommend

Oracle Database In-Memory

Read 31 Oracle Database In-Memory reviews

925 Views
396 Comparison Views

100% willing to recommend

kdb+

Oracle Database In-Memory

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Executive Summary

We performed a comparison between kdb+ and Oracle Database In-Memory based on real PeerSpot user reviews.

Find out what your peers are saying about Microsoft, Oracle, SAP and others in Relational Databases Tools.

To learn more, read our detailed Relational Databases Tools Report (Updated: June 2025).

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June 2025

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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

25th

Average Rating

9.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Oracle Database In-Memory

Ranking in Relational Databases Tools

9th

Average Rating

8.8

Reviews Sentiment

7.9

Number of Reviews

Ranking in other categories

Embedded Database (3rd)

Mindshare comparison

As of July 2025, in the Relational Databases Tools category, the mindshare of kdb+ is 0.4%, up from 0.3% compared to the previous year. The mindshare of Oracle Database In-Memory is 1.7%, up from 1.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Relational Databases Tools

Featured Reviews

Nitin Garg

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…

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Laksiri Bala

DB Architect / Consultant at Virtusa Global

Faster processing and improved memory operations have enhanced transaction and analytics efficiency

The valuable features of Oracle Database In-Memory ( /products/oracle-database-in-memory-reviews ) include its capability to bypass disk storage for faster memory operations, which is critical for transactions and analytics. It also offers specific memory areas, like in-memory cache, that act as intermediaries between disk and buffer cache. This feature helps organizations handle real-time memory requirements effectively.

Read full review

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 product offers high scalability."

"Normally, every database server uses hard disks. In-Memory has a feature, apart from their database, which is very good. When we start our server, all your data needs loading memory. We can use that. It's a very good feature. I think they added this feature in 2019. We can mount memory in the partition, create partitions in there, and create table space from that spot to share. It's a really good feature. We use it a lot."

"The scalability of the solution is very good. It's able to support large amounts of data."

"The application development is very user-friendly."

"It accelerates query processing, which in turn speeds up operations and streamlines workflow, and ultimately enhancing productivity."

"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."

"It efficiently handles low-code data and supports read-and-write operations for clustering."

"Oracle Database In-Memory is a suite of features that improves performance for real-time analytics and mixed workloads."

More Oracle Database In-Memory pros

Cons

"The solution should have a more user-friendly user interface."

"The platform’s pricing needs improvement."

"The dashboard requires some refreshment or configuration improvements."

"Lacks sufficient integration with other tools."

"We often have to find solutions on our own through the support site, so there's room for improvement in this regard."

"It would be good if Oracle could reduce downtime when transferring from non-In-Memory to In-Memory."

"The query optimization and backup features should be added."

"Oracle Database In-Memory appliance-based solutions can be restrictive for some applications, as they may require more flexibility in the database design to be tuned and sized to the customer's needs."

"The solution is quite expensive."

More Oracle Database In-Memory cons

Pricing and Cost Advice

Information not available

"The platform's licensing cost needs improvement."

"The pricing is pretty good so I rate it an eight out of ten."

"The product is expensive."

"It's quite costly and it comes with a fixed price."

"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."

"Database In-Memory is priced a bit higher than its competitors like Microsoft."

"The solution's pricing is high."

"I rate the pricing a zero out of ten because Database In-Memory is too costly."

More Oracle Database In-Memory pricing and cost advice

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Top Industries

By visitors reading reviews

Financial Services Firm

41%

Manufacturing Company

Computer Software Company

Energy/Utilities Company

Financial Services Firm

19%

Computer Software Company

10%

Manufacturing Company

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

Questions from the Community

What do you like most about kdb+?

The solution returns data quickly, and data retrieval is fast in kdb+.

See all answers

What needs improvement with kdb+?

The solution should have a more user-friendly user interface.

See all answers

What is your primary use case for kdb+?

See all answers

What do you like most about Oracle Database In-Memory?

We can integrate it with any data sources as well.

See all answers

What is your experience regarding pricing and costs for Oracle Database In-Memory?

Pricing is justified by the performance and business value offered by Oracle Database In-Memory. Although slightly higher, recent reductions in cloud costs and learning opportunities, such as free ...

See all answers

What needs improvement with Oracle Database In-Memory?

Oracle Database In-Memory could improve by better supporting generative AI challenges, such as hallucination management. Enhancing features like CAG augmentation and cache augmentation could signif...

See all answers

Comparisons

SQL Server vs kdb+

Compared 60% of the time

Oracle Database vs kdb+

Compared 40% of the time

More kdb+ Competitors

SAP HANA vs Oracle Database In-Memory

Compared 24% of the time

DuckDB vs Oracle Database In-Memory

Compared 15% of the time

SQL Server vs Oracle Database In-Memory

Compared 14% of the time

Progress OpenEdge RDBMS vs Oracle Database In-Memory

Compared 9% of the time

InterSystems Caché vs Oracle Database In-Memory

Compared 6% of the time

More Oracle Database In-Memory Competitors

Product Reports

Buyer's Guide

Relational Databases Tools

June 2025

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Buyer's Guide

Oracle Database In-Memory

June 2025

Download Oracle Database In-Memory product report

Overview

Kx is the world leader in high-performance, in-memory computing, streaming analytics and operational intelligence. The company’s focus is on delivering the best possible performance and flexibility for high-volume, data-intensive analytics and applications. Kx software includes the time-series database kdb+ with a built-in programming language called q, and a robust suite of visualization tools built on top of the database platform providing business intelligence for all users.

Kx Systems

Oracle Database In-Memory transparently accelerates analytics by orders of magnitude while simultaneously speeding up mixed-workload OLTP. With Oracle Database In-Memory, users get immediate answers to business questions that previously took hours.

Oracle Database In-Memory delivers leading-edge in-memory performance without the need to restrict functionality, or accept compromises, complexity and risk. Deploying Oracle Database In-Memory with any existing Oracle Database compatible application is as easy as flipping a switch - no application changes are required. Oracle Database In-Memory is fully integrated with the Oracle Database’s renowned scale-up, scale-out, storage tiering, availability, and security technologies making it the most industrialstrength offering on the market.

The ability to easily perform real-time data analysis together with real-time transaction processing on all existing applications enables organizations to transform into Real-Time Enterprises that quickly make data-driven decisions, respond instantly to customer demands, and continuously optimize all key processes.

For more information on Oracle Database In-Memory, visit Oracle.com

Oracle

Sample Customers

UniCredit, AIRBUS

Shanghai Customs

Buyer's Guide

Relational Databases Tools

June 2025

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