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DuckDB vs Oracle Database In-Memory 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

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 (12th)
 

Mindshare comparison

As of September 2026, in the Embedded Database category, the mindshare of DuckDB is 11.0%, down from 12.3% compared to the previous year. The mindshare of Oracle Database In-Memory is 11.9%, up from 10.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Embedded Database Mindshare Distribution
ProductMindshare (%)
Oracle Database In-Memory11.9%
DuckDB11.0%
Other77.1%
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."
"We have recently deployed our database on cloud with Oracle Database In-Memory; we have a single standby on cloud, and on contingency occasions, we switch over to cloud and use it for four to five months."
"The on-premise version is stable. We have different teams and resources for the server side, for admin, and for development. We can easily take care of all the services and applications."
"I find the performance features of Oracle Database In-Memory to be most beneficial."
"The benefits of data compression in Oracle Database In-Memory are great because we are using data, and it saves a lot regarding sizing."
"The product offers high scalability."
"Combined with Exadata, it makes a solution that will deliver the best performance related to the volume of data."
"The most valuable feature is that Database-In-Memory is more consistent and faster than traditional databases as it requires fewer CPUs to process instructions."
"We can integrate it with any data sources as well."
 

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."
"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."
"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 area where improvement is required the most in the product is the UI."
"Lacks sufficient integration with other tools."
"The pricing could be improved. It would ideal if it was more reasonable."
"The query optimization and backup features should be added."
"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."
"The platform’s pricing needs improvement."
 

Pricing and Cost Advice

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

By visitors reading reviews
Financial Services Firm
12%
Comms Service Provider
11%
Computer Software Company
9%
Government
8%
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

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.
 

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: September 2026.
913,422 professionals have used our research since 2012.