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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
32nd
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
12th
Average Rating
8.8
Reviews Sentiment
7.1
Number of Reviews
33
Ranking in other categories
Embedded Database (2nd)
 

Mindshare comparison

As of September 2026, in the Relational Databases Tools category, the mindshare of Citus Data is 2.0%, down from 2.6% compared to the previous year. The mindshare of Oracle Database In-Memory is 2.2%, 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-Memory2.2%
Citus Data2.0%
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

"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."
"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."
"Overall, it's a very good solution."
"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."
"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."
"The Oracle database is easier to program and manage, and is secure."
"We find the dashboard and the speed of data processing very valuable in Oracle Database In-Memory."
"The solution provides a good environment and it's a product we trust."
"We can provide a high standard with this solution to our customers by using such products."
"The application development is very user-friendly."
 

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."
"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."
"More features in monitoring and the reporting could make it better."
"For some reason, the stats optimizer doesn't work well. We had to disable some of the Oracle’s new features that are not quite mature."
"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."
"Multitenant, to be honest, is a little adolescent at this point."
"We often have to find solutions on our own through the support site, so there's room for improvement in this regard."
"Oracle Database In-Memory could improve by better supporting generative AI challenges, such as hallucination management."
"It's good and it functions, but it's not the easiest add-on to Database to work with."
"The solution is quite expensive."
"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."
 

Pricing and Cost Advice

"Citus Data is an open-source product."
"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."
"I rate the pricing a zero out of ten because Database In-Memory is too costly."
"Oracle Database In-Memory is expensive."
"The platform's licensing cost needs improvement."
"Database In-Memory is priced a bit higher than its competitors like Microsoft."
"The solution's pricing is high."
"It's quite costly and it comes with a fixed price."
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Construction Company
13%
Comms Service Provider
10%
Financial Services Firm
9%
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

Ask a question
Earn 20 points
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

Cloud Flare, Agari, Mix Rank, Heap
Shanghai Customs
Find out what your peers are saying about Citus Data vs. Oracle Database In-Memory and other solutions. Updated: September 2026.
913,683 professionals have used our research since 2012.