Citus Data vs Oracle Database In-Memory comparison

Citus Data and Oracle are both solutions in the Relational Databases Tools category. Citus Data is ranked #23 with an average rating of 7.0, while Oracle is ranked #9 with an average rating of 8.9. Citus Data holds a 2.7% mindshare in SQL, compared to Oracle’s 1.9% mindshare. Additionally, 100% of Citus Data users are willing to recommend the solution, compared to 100% of Oracle users who would recommend it.

Citus Data

Read 3 Citus Data reviews

1,309 Views
1,217 Comparison Views

100% willing to recommend

Oracle Database In-Memory

Read 33 Oracle Database In-Memory reviews

1,326 Views
888 Comparison Views

100% willing to recommend

Citus Data

Oracle Database In-Memory

Comparison Buyer's Guide

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Executive SummaryUpdated on Mar 4, 2025

Citus Data and Oracle Database In-Memory are competitive in handling large-scale data. Oracle Database In-Memory often has the upper hand due to its comprehensive features and value that justify higher costs.

Features: Citus Data enables horizontal scaling for distributed databases and offers high availability and unique sharding features. Oracle Database In-Memory is distinguished by its extensive analytic capabilities and optimization for both transactional and analytical workloads, with a focus on high-speed processing due to in-memory technology.

Ease of Deployment and Customer Service: Citus Data offers straightforward deployment leveraging open-source PostgreSQL, aiding integration and management with responsive customer service. Oracle Database In-Memory requires more complex setup due to advanced infrastructure needs but provides comprehensive support to ensure smooth operations.

Pricing and ROI: Citus Data is preferred by small to medium-sized enterprises for its lower setup costs, offering substantial ROI with scalability focus. Oracle Database In-Memory has higher initial investment but justifies this with significant performance improvements and long-term value, appealing to large enterprises with substantial budgets.

To learn more, read our detailed Citus Data vs. Oracle Database In-Memory Report (Updated: December 2025).

Buyer's Guide

Citus Data vs. Oracle Database In-Memory

December 2025

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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

23rd

Average Rating

8.0

Reviews Sentiment

7.3

Number of Reviews

Ranking in other categories

No ranking in other categories

Oracle Database In-Memory

Ranking in Relational Databases Tools

9th

Average Rating

8.8

Reviews Sentiment

7.1

Number of Reviews

Ranking in other categories

Embedded Database (4th)

Mindshare comparison

As of December 2025, in the Relational Databases Tools category, the mindshare of Citus Data is 2.7%, up from 1.9% compared to the previous year. The mindshare of Oracle Database In-Memory is 1.9%, up from 1.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Relational Databases Tools Market Share Distribution
Product	Market Share (%)
Oracle Database In-Memory	1.9%
Citus Data	2.7%
Other	95.4%

Relational Databases Tools

Featured Reviews

Arucy Lionel

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.

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Hosney Osman

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.

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Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Pros

"It's very straightforward to implement the solution. It took us two days to set up everything."

"You can use Citus Data to write complex scripts. I like its version upgrades and disaster recovery as well."

"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."

"It efficiently handles low-code data and supports read-and-write operations for clustering."

"Oracle Database In-Memory is a suite of features that improves performance for real-time analytics and mixed workloads."

"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 solution's ROI is excellent."

"I find the performance features of Oracle Database In-Memory to be most beneficial."

"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."

"The solution is very fast."

"Security is the most valuable feature."

More Oracle Database In-Memory pros

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."

"Lacks sufficient integration with other tools."

"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."

"They should lower the price. My customers think that it's too expensive."

"The query optimization and backup features should be added."

"The dashboard requires some refreshment or configuration improvements."

"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."

"Oracle Database In-Memory could improve by better supporting generative AI challenges, such as hallucination management."

"Technical support is below our expectations currently. It could be improved."

More Oracle Database In-Memory cons

Pricing and Cost Advice

"Citus Data is an open-source product."

"Oracle Database In-Memory 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."

"I rate the pricing a zero out of ten because Database In-Memory is too costly."

"The platform's licensing cost needs improvement."

"It's quite costly and it comes with a fixed price."

"The product is expensive."

"The solution's pricing is high."

More Oracle Database In-Memory pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

21%

Comms Service Provider

Consumer Goods Company

Manufacturing Company

Financial Services Firm

19%

Comms Service Provider

Manufacturing Company

Pharma/Biotech Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	6
Midsize Enterprise	4
Large Enterprise	23

Questions from the Community

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What do you like most about Oracle Database In-Memory?

We can integrate it with any data sources as well.

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What is your experience regarding pricing and costs for Oracle Database In-Memory?

The pricing for Oracle Database In-Memory is more affordable.

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What needs improvement with Oracle Database In-Memory?

I currently don't know how Oracle Database In-Memory has benefited my organization. We recently received this query from our high management to use this In-Memory function, so we are currently in p...

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Comparisons

CockroachDB vs Citus Data

Compared 23% of the time

Neon vs Citus Data

Compared 15% of the time

YugabyteDB vs Citus Data

Compared 14% of the time

SQL Server vs Citus Data

Compared 8% of the time

Oracle Database vs Citus Data

Compared 6% of the time

More Citus Data Competitors

SAP HANA vs Oracle Database In-Memory

Compared 14% of the time

DuckDB vs Oracle Database In-Memory

Compared 11% of the time

SQL Server vs Oracle Database In-Memory

Compared 10% of the time

Progress OpenEdge RDBMS vs Oracle Database In-Memory

Compared 6% of the time

Druid vs Oracle Database In-Memory

Compared 6% of the time

More Oracle Database In-Memory Competitors

Product Reports

Buyer's Guide

Relational Databases Tools

November 2025

Download Citus Data product report

Buyer's Guide

Oracle Database In-Memory

December 2025

Download Oracle Database In-Memory product report

Overview

Citus is a distributed database that extends PostgreSQL, allowing you to continue using all the powerful Postgres features while still scaling.

Whether you're running into a ceiling on a single node, or need more performance for real-time analytical queries Citus can help.

Citus Data

Oracle Database In-Memory transparently accelerates analytics by orders of magnitude while simultaneously speeding up mixed-workload OLTP. With Oracle Database In-Memory, users get immediate answers to business questions that previously took hours.

Oracle Database In-Memory delivers leading-edge in-memory performance without the need to restrict functionality, or accept compromises, complexity and risk. Deploying Oracle Database In-Memory with any existing Oracle Database compatible application is as easy as flipping a switch - no application changes are required. Oracle Database In-Memory is fully integrated with the Oracle Database’s renowned scale-up, scale-out, storage tiering, availability, and security technologies making it the most industrialstrength offering on the market.

The ability to easily perform real-time data analysis together with real-time transaction processing on all existing applications enables organizations to transform into Real-Time Enterprises that quickly make data-driven decisions, respond instantly to customer demands, and continuously optimize all key processes.

For more information on Oracle Database In-Memory, visit Oracle.com

Oracle

Sample Customers

Cloud Flare, Agari, Mix Rank, Heap

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Buyer's Guide

Citus Data vs. Oracle Database In-Memory

December 2025

Free Report: Citus Data vs. Oracle Database In-Memory

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