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Oracle Database In-Memory vs SQL Server comparison

 

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:
 

ROI

Sentiment score
4.3
Oracle Database In-Memory offers substantial ROI and benefits, though support costs may impact long-term finances for some users.
Sentiment score
7.2
Organizations experience significant returns and financial advantages with SQL Server, preferring its cost-effectiveness and analytics over Oracle.
SQL Server is the most cost-effective with good human resource availability to manage it.
Manager - Production Database Administration at a tech vendor with 10,001+ employees
All applications need our repository to provide services for our online business or our customers, so the return is good.
Infrastructure Coordinator at a financial services firm with 10,001+ employees
With Standard edition, they have saved a ton of money and they are really happy about that.
Data Warehouse Lead at Resurs Bank AB (publ.)
 

Customer Service

Sentiment score
5.5
Oracle Database In-Memory customer service improves in some regions but is inconsistent, with users finding varied support experiences.
Sentiment score
6.5
Microsoft's technical support is reliable, praised for responsiveness, though communication and on-premise SQL Server support may need improvement.
Support quality varies across regions, with more advanced solutions from the U.S. and UK compared to Asian region support.
DB Architect / Consultant at Virtusa Global
The technical support from Oracle is very good.
Technical Solution Architect at Vodafone
I rate the technical support of Oracle an eight or nine out of ten.
Sr. Oracle Database Administrator at Shoukat Khanum Memorial Hospital
There was a time when Microsoft support provided very crisp answers, but over time, they have diluted their support to third parties, leading to a drop in support quality.
Manager - Production Database Administration at a tech vendor with 10,001+ employees
I give their technical support a rating of ten out of ten.
Data Warehouse Lead at Resurs Bank AB (publ.)
When we created support tickets, the experience was very positive.
Subdirector of Support for Production at Servicios Electrónicos Globales -Oficial
 

Scalability Issues

Sentiment score
7.7
Oracle Database In-Memory is highly scalable and easily adjustable, effectively managing large datasets and supporting enterprise needs.
Sentiment score
7.1
SQL Server is highly scalable, especially in the cloud, though performance may vary with complex applications and configurations.
The server where we installed it has grown from 64 gigabytes in RAM to 256 gigabytes, demonstrating significant scalability capabilities.
Subdirector of Support for Production at Servicios Electrónicos Globales -Oficial
Most of the time, they simply add another node in the availability group.
Data Warehouse Lead at Resurs Bank AB (publ.)
I can scale both horizontally and vertically without challenges.
Manager - Production Database Administration at a tech vendor with 10,001+ employees
 

Stability Issues

Sentiment score
7.6
Users find Oracle Database In-Memory stable and reliable, despite occasional bugs and high maintenance needs for resource-intensive setups.
Sentiment score
7.6
SQL Server is reliable and stable, performing well in transactions despite occasional performance and deployment challenges.
Oracle Database In-Memory is stable, which means there are no glitches or issues.
Technical Solution Architect at Vodafone
It was very difficult to move data from on-site to cloud in one attempt at the start, because we didn't have sufficient bandwidth to copy the data files to the cloud.
Sr. Oracle Database Administrator at Shoukat Khanum Memorial Hospital
There were critical repercussions from this issue, as the databases decreased in size immensely, filling the disk and causing everything to stop.
Data Warehouse Lead at Resurs Bank AB (publ.)
All applications supporting SQL Server in my experience work very well across various industries including telecom, finance, banking, ad, entertainment, and workforce management.
Manager - Production Database Administration at a tech vendor with 10,001+ employees
 

Room For Improvement

Oracle Database In-Memory users seek enhancements in cost, installation, integration, security, scalability, interface, and column store support.
SQL Server faces criticism for requiring Internet Explorer, high licensing costs, complex operations, and lacking scalability and compatibility.
Allowing in-memory support features to handle processes without relying heavily on vector databases.
DB Architect / Consultant at Virtusa Global
The area where improvement is required the most in the product is the UI.
Technical Solution Architect at Vodafone
It is fine to do a first release that works, but you cannot simply abandon it in the following years without service packs and improvements.
Data Warehouse Lead at Resurs Bank AB (publ.)
One long-pending request from Microsoft is for two-node write capabilities, as currently, I can write from one node and read from multiple nodes.
Manager - Production Database Administration at a tech vendor with 10,001+ employees
When we consider the price for replication in another site, the pricing becomes prohibitive.
Subdirector of Support for Production at Servicios Electrónicos Globales -Oficial
 

Setup Cost

Oracle Database In-Memory is costly, yet offers valuable performance and features, benefiting larger enterprises despite high licensing fees.
SQL Server offers high initial costs but delivers value in features, scalability, and ROI, and is cheaper than Oracle.
Recent reductions in cloud costs and learning opportunities, such as free portals for students, make the pricing reasonable without hindering access to powerful features and performance.
DB Architect / Consultant at Virtusa Global
The pricing for Oracle Database In-Memory is more affordable.
Sr. Oracle Database Administrator at Shoukat Khanum Memorial Hospital
Cost savings on human resources for Windows plus SQL Server versus other solutions.
Manager - Production Database Administration at a tech vendor with 10,001+ employees
 

Valuable Features

Oracle Database In-Memory enhances performance with real-time analytics, backward compatibility, automated configuration, fast queries, and efficient management.
SQL Server offers robust features, ease of use, and reliability, ideal for organizations needing effective database management and optimization.
The biggest benefit of Oracle Database In-Memory is dealing with a huge amount of information without any latency for our response time.
Technical Solution Architect at Vodafone
The valuable features of Oracle Database In-Memory include its capability to bypass disk storage for faster memory operations, which is critical for transactions and analytics.
DB Architect / Consultant at Virtusa Global
Always On HADR functionality is one of the features that I use on a daily basis and one of my most used features, saving me lots of time, especially since previously I had to build a SQL cluster and Windows clusters that had many dependencies on shared infrastructure, but now with Always On, it is too stable with easy management and almost zero maintenance, which SQL Server handles itself.
Manager - Production Database Administration at a tech vendor with 10,001+ employees
I have been working with SQL Server for a long time, and it works well for me as I am using it in different applications, such as web applications, Windows applications, or the data warehouse reporting.
Infrastructure Coordinator at a financial services firm with 10,001+ employees
The best features of SQL Server are availability and stability.
Subdirector of Support for Production at Servicios Electrónicos Globales -Oficial
 

Categories and Ranking

Oracle Database In-Memory
Ranking in Relational Databases Tools
10th
Average Rating
8.8
Reviews Sentiment
7.1
Number of Reviews
33
Ranking in other categories
Embedded Database (4th)
SQL Server
Ranking in Relational Databases Tools
1st
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
272
Ranking in other categories
Database Management Systems (DBMS) (4th)
 

Mindshare comparison

As of January 2026, in the Relational Databases Tools category, the mindshare of Oracle Database In-Memory is 1.9%, up from 1.3% compared to the previous year. The mindshare of SQL Server is 12.1%, down from 19.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Relational Databases Tools Market Share Distribution
ProductMarket Share (%)
SQL Server12.1%
Oracle Database In-Memory1.9%
Other86.0%
Relational Databases Tools
 

Featured Reviews

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.
Peter Larsson - PeerSpot reviewer
Data Warehouse Lead at Resurs Bank AB (publ.)
Ledger and seamless integrations have strengthened trusted analytics and unified workloads
SQL Server's high availability and disaster recovery features work for supporting mission-critical applications, but there is much more to wish for. These features are not quite ready yet, although they do function. However, they could be significantly better. High availability and disaster recovery features should be improved in the next releases. I have noticed that everything could be improved or enhanced in the future, particularly temporal tables and window functions. Sometimes, I believe Microsoft releases features to stay ahead of competitors, but they do not make them feature-rich or feature-complete. They release something to be ahead of leaders and then seem to forget to maintain and upgrade them. I want Microsoft to pay more attention and be more mindful about the things they implement. It is fine to do a first release that works, but you cannot simply abandon it in the following years without service packs and improvements. You must continue to build on features rather than forgetting about them.
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Top Industries

By visitors reading reviews
Financial Services Firm
19%
Comms Service Provider
9%
Computer Software Company
7%
Manufacturing Company
6%
Financial Services Firm
38%
Computer Software Company
8%
Manufacturing Company
7%
Government
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise4
Large Enterprise23
By reviewers
Company SizeCount
Small Business119
Midsize Enterprise59
Large Enterprise115
 

Questions from the Community

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 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...
Would you say the price of SQL Server is high compared to that of similar products?
SQL Server is fairly priced because it has various editions, depending on the number of users, servers, or core packs you are using. If you compare the product to others in this category, the price...
Has using SQL Server helped your organization in any way?
SQL Server has helped my organization through partitioning to distribute the workload, as it splits them up into smaller pieces so the machines can easily deal with it. However, this comes with a h...
Which authentication mode is best for SQL Server?
My company connects through SQL Server authentication. We have company Windows accounts, but we do not want to connect the two, out of security concerns and to keep things separated for our own pur...
 

Also Known As

No data available
Microsoft SQL Server, MSSQL, MS SQL
 

Overview

 

Sample Customers

Shanghai Customs
Microsoft SQL Server is used by businesses in every industry, including Great Western Bank, Aviva, the Volvo Car Corporation, BMW, Samsung, Principality Building Society, Wellmark Blue Cross and Blue Shield, and the Catholic District School Board of Eastern Ontario.
Find out what your peers are saying about Oracle Database In-Memory vs. SQL Server and other solutions. Updated: December 2025.
879,768 professionals have used our research since 2012.