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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
9.0
Reviews Sentiment
6.5
Number of Reviews
1
Ranking in other categories
No ranking in other categories
Oracle Database In-Memory
Ranking in Embedded Database
4th
Average Rating
8.8
Reviews Sentiment
7.1
Number of Reviews
33
Ranking in other categories
Relational Databases Tools (10th)
 

Mindshare comparison

As of March 2026, in the Embedded Database category, the mindshare of DuckDB is 12.3%, up from 11.7% compared to the previous year. The mindshare of Oracle Database In-Memory is 10.9%, up from 7.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Embedded Database Mindshare Distribution
ProductMindshare (%)
Oracle Database In-Memory10.9%
DuckDB12.3%
Other76.8%
Embedded Database
 

Featured Reviews

AM
Head of Data Science center of excellence at Ameriabank CJSC
Highly efficient data processing, optimizes infrastructure, and offers good integrations
DuckDB is very fast. If we don't have enough memory, we can use swap. For instance, if we use a fast storage space, the system volume in Kubernetes could be a fast swap for DuckDB if we have memory limits. In our framework, DuckDB is five times faster than Spark in some cases. It has an extensive SQL dialect, many SQL Windows functions, and good integration with Polars. We can easily use SQL and Pandas framework in Python to process data.
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

"DuckDB is very fast."
"The scalability is very good."
"We find the dashboard and the speed of data processing very valuable in Oracle Database In-Memory."
"The most valuable aspects of this solution are the fast caching and improved performance to the database"
"The application development is very user-friendly."
"Security is the most valuable feature."
"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 most valuable feature is that Database-In-Memory is more consistent and faster than traditional databases as it requires fewer CPUs to process instructions."
"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."
 

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."
"The solution should move to the new way of writing software code with AI that is intelligent and learns."
"The solution is quite expensive."
"The pricing could be improved. It would ideal if it was more reasonable."
"The product could benefit from enhancements in its graphical user interface."
"They should improve the solution's scalability for large databases."
"It would be good if Oracle could reduce downtime when transferring from non-In-Memory to In-Memory."
"I would like Oracle Database In-Memory to include a data replication feature."
"The product could be more economical."
 

Pricing and Cost Advice

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

By visitors reading reviews
Financial Services Firm
14%
Comms Service Provider
10%
Computer Software Company
9%
Manufacturing Company
7%
Financial Services Firm
15%
Marketing Services Firm
9%
Comms Service Provider
8%
Computer Software 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?
We use the concept of a feature store. We need the engine, and we use Feast as our feature store framework to build our feature store. We use the DuckDB engine as a data engine, which helps us move...
What do you like most about Oracle Database In-Memory?
We can integrate it with any data sources as well.
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 ...
 

Comparisons

 

Overview

 

Sample Customers

Information Not Available
Shanghai Customs
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