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Citus Data vs Oracle Database In-Memory comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Mar 4, 2025

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

Citus Data
Ranking in Relational Databases Tools
31st
Average Rating
8.0
Reviews Sentiment
7.3
Number of Reviews
3
Ranking in other categories
No ranking in other categories
Oracle Database In-Memory
Ranking in Relational Databases Tools
17th
Average Rating
8.8
Reviews Sentiment
7.1
Number of Reviews
33
Ranking in other categories
Embedded Database (2nd)
 

Mindshare comparison

As of October 2026, in the Relational Databases Tools category, the mindshare of Citus Data is 1.9%, down from 2.6% compared to the previous year. The mindshare of Oracle Database In-Memory is 2.3%, up from 1.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Relational Databases Tools Mindshare Distribution
ProductMindshare (%)
Oracle Database In-Memory2.3%
Citus Data1.9%
Other95.8%
Relational Databases Tools
 

Featured Reviews

Arucy Lionel - PeerSpot reviewer
Co-Founder at Afriziki
Efficiently handles high-traffic scenarios and compatible with PostgreSQL extensions, offering flexibility in database management
There are many areas of improvement , especially in terms of DDL query routing. Even though it's masterless, DDL queries need to be sent to the coordinator node. Also, setting up a multi-node environment could be more straightforward. Currently, setting up a multi-node environment is challenging. It's a bit tricky. Installation on each PostgreSQL node can lead to communication issues between nodes. An automatic rebalancing feature would be a significant improvement. Currently, I have to manually command the rebalance. It would be more convenient if it was rebalanced automatically. The dashboard and monitoring capabilities are good, but it would be helpful to have an integrated availability dashboard.
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

"Its distributed processing capabilities are a standout feature. It requires minimal changes to get up and running if you already have a system on PostgreSQL. Citus can run in its natural state."
"You can use Citus Data to write complex scripts. I like its version upgrades and disaster recovery as well."
"It's very straightforward to implement the solution. It took us two days to set up everything."
"The solution is competitive with Mongo, MySQL, and maybe even Oracle."
"We find the dashboard and the speed of data processing very valuable in Oracle Database In-Memory."
"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."
"We can integrate it with any data sources as well."
"The scalability of the solution is very good, and it's able to support large amounts of data once the architecture is in place."
"Database In-Memory, to me, is the most compelling reason to go to Oracle 12c, release 1."
"It efficiently handles low-code data and supports read-and-write operations for clustering."
"The solution's most valuable feature is its performance optimization within our hardware environment."
"I like Oracle because it is a backward-compatible solution."
 

Cons

"There are many areas of improvement , especially in terms of DDL query routing. Even though it's masterless, DDL queries need to be sent to the coordinator node. Also, setting up a multi-node environment could be more straightforward."
"More features in monitoring and the reporting could make it better."
"Citus Data needs to improve its stability. Do not consider this product if you have the budget. It is still developing and has a lot of issues."
"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 pricing could be improved. It would ideal if it was more reasonable."
"Oracle Database In-Memory could improve by better supporting generative AI challenges, such as hallucination management."
"The solution is quite expensive."
"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."
"They should lower the price. My customers think that it's too expensive."
"The solution is very expensive."
"The solution should move to the new way of writing software code with AI that is intelligent and learns."
 

Pricing and Cost Advice

"Citus Data is an open-source product."
"It's quite costly and it comes with a fixed price."
"The pricing is pretty good so I rate it an eight out of ten."
"The solution's pricing is high."
"I rate the pricing a zero out of ten because Database In-Memory is too costly."
"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."
"Oracle Database In-Memory is expensive."
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Construction Company
13%
Comms Service Provider
9%
Financial Services Firm
8%
Comms Service Provider
12%
Financial Services Firm
12%
Outsourcing Company
9%
Manufacturing 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

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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

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Find out what your peers are saying about Citus Data vs. Oracle Database In-Memory and other solutions. Updated: September 2026.
917,433 professionals have used our research since 2012.