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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 (11th)
 

Mindshare comparison

As of April 2026, in the Embedded Database category, the mindshare of DuckDB is 12.1%, up from 11.8% compared to the previous year. The mindshare of Oracle Database In-Memory is 11.2%, up from 8.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Embedded Database Mindshare Distribution
ProductMindshare (%)
Oracle Database In-Memory11.2%
DuckDB12.1%
Other76.7%
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 most valuable feature of Database In-Memory is that it's really fast."
"I've been an Oracle customer with different companies, and one of the key things that stands out for Oracle is the support, because I also work with other database vendors and that's the biggest differentiator."
"Security is the most valuable feature."
"Database In-Memory, to me, is the most compelling reason to go to Oracle 12c, release 1."
"The on-premise version is stable."
"We find the dashboard and the speed of data processing very valuable in Oracle Database In-Memory."
"It efficiently handles low-code data and supports read-and-write operations for clustering."
"The warehouse is the solution's most valuable aspect."
 

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."
"We often have to find solutions on our own through the support site, so there's room for improvement in this regard."
""It depends". If you get a good support engineer, it is a dream. But, most times, it is not, unfortunately."
"Personally, this solution wouldn't be my top choice, as it makes things difficult."
"You need to have platinum service to get good support. Otherwise, you'll have to struggle a bit."
"The dashboard requires some refreshment or configuration improvements."
"It's good and it functions, but it's not the easiest add-on to Database to work with."
"The product could be more economical."
"Oracle should include column store or advanced query optimization so a database can be optimized by enabling analytic queries to run faster."
 

Pricing and Cost Advice

Information not available
"Oracle Database In-Memory is expensive."
"The pricing is pretty good so I rate it an eight out of ten."
"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."
"The product is expensive."
"It's quite costly and it comes with a fixed price."
"I rate the pricing a zero out of ten because Database In-Memory is too costly."
"The solution's pricing is high."
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Top Industries

By visitors reading reviews
Financial Services Firm
13%
Computer Software Company
10%
Comms Service Provider
9%
Government
8%
Financial Services Firm
15%
Comms Service Provider
9%
Marketing Services Firm
7%
Government
5%
 

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 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
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