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DuckDB vs Oracle Database In-Memory 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

DuckDB
Ranking in Embedded Database
5th
Average Rating
8.6
Reviews Sentiment
6.5
Number of Reviews
2
Ranking in other categories
No ranking in other categories
Oracle Database In-Memory
Ranking in Embedded Database
2nd
Average Rating
8.8
Reviews Sentiment
7.1
Number of Reviews
33
Ranking in other categories
Relational Databases Tools (11th)
 

Mindshare comparison

As of June 2026, in the Embedded Database category, the mindshare of DuckDB is 11.5%, down from 12.0% compared to the previous year. The mindshare of Oracle Database In-Memory is 11.9%, up from 8.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Embedded Database Mindshare Distribution
ProductMindshare (%)
Oracle Database In-Memory11.9%
DuckDB11.5%
Other76.6%
Embedded Database
 

Featured Reviews

MC
Senior Analytics Engineer at a tech vendor with 501-1,000 employees
Caching analytics queries has reduced repeated compute and supports faster embedded reporting
The use of DuckDB as a cache for analytics in an embedded analytics product is a valuable feature. It helps manage compute resources efficiently by preventing repeated computations of the same query. This has made it quite handy and quick to implement, which aligns with the fast-paced needs of our engineering team.
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 use of DuckDB as a cache for analytics in an embedded analytics product is a valuable feature."
"DuckDB is very fast."
"I find the performance features of Oracle Database In-Memory to be most beneficial, with system performance in milliseconds, dual format architecture positively impacting our data processing, and clear financial benefits from its efficient operation that improve our overall operational efficiency."
"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."
"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."
"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 solution provides a good environment and it's a product we trust."
"Oracle Database In-Memory is a suite of features that improves performance for real-time analytics and mixed workloads."
"After we started using the in-memory product, we saw really dramatic figures."
"Database In-Memory, to me, is the most compelling reason to go to Oracle 12c, release 1."
 

Cons

"Sometimes we have memory issues that cause job failures, which we don't fully understand why, but we can rerun the jobs without problems."
"Multitenant, to be honest, is a little adolescent at this point."
"The pricing could be improved. It would ideal if it was more reasonable."
"Lacks sufficient integration with other tools."
"It would be good if Oracle could reduce downtime when transferring from non-In-Memory to In-Memory."
"Oracle Database In-Memory is more expensive than Azure, and the support from the Oracle team is not very good, especially since they do not have a support team in our region."
"Additionally, once we put data into Oracle, it's very hard to move it out to another solution, so we have to stay with Oracle."
"The solution is quite expensive."
"Especially, if you have large data, then it's not very efficient."
 

Pricing and Cost Advice

Information not available
"The platform's licensing cost needs improvement."
"Database In-Memory is priced a bit higher than its competitors like Microsoft."
"The product is expensive."
"The solution's pricing is high."
"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."
"Oracle Database In-Memory is expensive."
"The pricing is pretty good so I rate it an eight out of ten."
"It's quite costly and it comes with a fixed price."
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Computer Software Company
9%
Comms Service Provider
9%
Government
7%
Financial Services Firm
14%
Comms Service Provider
8%
Marketing Services Firm
7%
Construction Company
7%
 

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

What is your experience regarding pricing and costs for DuckDB?
We use the open-source version of DuckDB and don't have costs associated with it. There is a company that provides commercial software, but we use the open-source library, not the services.
What needs improvement with DuckDB?
Sometimes we have memory issues that cause job failures, which we don't fully understand why, but we can rerun the jobs without problems. There were also problems with binary formats in the previou...
What is your primary use case for DuckDB?
My main use case for DuckDB is that we're using it as a cache for analytics. We have an embedded analytics product, and in order to manage our compute resources, we are using DuckDB so that we do n...
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

Information Not Available
Shanghai Customs
Find out what your peers are saying about DuckDB vs. Oracle Database In-Memory and other solutions. Updated: June 2026.
899,258 professionals have used our research since 2012.