IBM Db2 Database vs Oracle Database vs Teradata comparison

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IBM Db2 Database

Oracle Database

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Executive Summary

We performed a comparison between IBM Db2 Database, Oracle Database, and Teradata based on real PeerSpot user reviews.

Find out what your peers are saying about Microsoft, Oracle, SAP and others in Relational Databases Tools.

To learn more, read our detailed Relational Databases Tools Report (Updated: May 2025).

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May 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:

Mindshare comparison

As of May 2025, in the Relational Databases Tools category, the mindshare of IBM Db2 Database is 7.1%, up from 6.5% compared to the previous year. The mindshare of Oracle Database is 12.8%, down from 15.4% compared to the previous year. The mindshare of Teradata is 5.3%, up from 5.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.

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Featured Reviews

SimonHiggins

Mainframe Technical Manager/Service Integration Lead at Saudi Business Machines

Very scalable with high availability and excellent technical support

The good thing is that there are improvements coming with later function levels for the z/OS Db2. I'd like it if, with the operating system that we've got, z/OS, on the mainframe, it would allow us to refresh the hardware to run Linux dockers on the mainframe. This means this might give us opportunities for different ways of coming into the Db2 environment in the future. We just want a bit more integration with Linux. That said, we are already seeing Linux more readily available on the mainframe environment. Not only have we got the premium operating systems on OS. We can run LPARs on the same mainframe footprint that is also supporting Linux. This is what has improved and made the mainframe environment more competitive. We're also looking at AI for Db2 as well, and machine learning for the future. We know that AI has come out, that we're going to get that, and we're going to evaluate that product next year for Db2. That said, I haven't got any real complaints about Db2 on the mainframe. For the most part, a lot of the problems we have nowadays are to do with communication between the various teams that you would class as stakeholders.

Continuous updates improve performance and add valuable features to meet workload demands

Ismail Aboulezz

Chief Executive Officer at LeaseWeb

Oracle Database ( /products/oracle-database-reviews ) is easy to install, customize, troubleshoot, and maintain. Its data management capabilities include data quality, data integration, data architecture, modeling, and data security, which are very important for data-driven companies. Furthermore, Oracle Database's performance and scalability features meet workload demands, and its continuous updates improve performance and add valuable features.

Offers seamless integration capabilities and performance optimization features, including extensive indexing and advanced tuning capabilities

SurjitChoudhury

Data engineer at Cocos pt

We created and constructed the warehouse. We used multiple loading processes like MultiLoad, FastLoad, and Teradata Pump. But those are loading processes, and Teradata is a powerful tool because if we consider older technologies, its architecture with nodes, virtual processes, and nodes is a unique concept. Later, other technologies like Informatica also adopted the concept of nodes from Informatica PowerCenter version 7.x. Previously, it was a client-server architecture, but later, it changed to the nodes concept. Like, we can have the database available 24/7, 365 days. If one node fails, other nodes can take care of it. Informatica adopted all those concepts when it changed its architecture. Even Oracle databases have since adapted their architecture to them. However, this particular Teradata company initially started with its own different type of architecture, which major companies later adopted. It has grown now, but initially, whatever query we sent it would be mapped into a particular component. After that, it goes to the virtual processor and down to the disk, where the actual physical data is loaded. So, in between, there's a map, which acts like a data dictionary. It also holds information about each piece of data, where it's loaded, and on which particular virtual processor or node the data resides. Because Teradata comes with a four-node architecture, or however many nodes we choose, the cost is determined by that initially. So, what type of data does each and every node hold? It's a shared-no architecture. So, whatever task is given to a virtual processor it will be processed. If there's a failure, then it will be taken care of by another virtual processor. Moreover, this solution has impacted the query time and data performance. In Teradata, there's a lot of joining, partitioning, and indexing of records. There are primary and secondary indexes, hash indexing, and other indexing processes. To improve query performance, we first analyze the query and tune it. If a join needs a secondary index, which plays a major role in filtering records, we might reconstruct that particular table with the secondary index. This tuning involves partitioning and indexing. We use these tools and technologies to fine-tune performance. When it comes to integration, tools like Informatica seamlessly connect with Teradata. We ensure the Teradata database is configured correctly in Informatica, including the proper hostname and properties for the load process. We didn't find any major complexity or issues with integration. But, these technologies are quite old now. With newer big data technologies, we've worked with a four-layer architecture, pulling data from Hadoop Lake to Teradata. We configure Teradata with the appropriate hostname and credentials, and use BTEQ queries to load data. Previously, we converted the data warehouse to a CLD model as per Teradata's standardized procedures, moving from an ETL to an EMT process. This allowed us to perform gap analysis on missing entities based on the model and retrieve them from the source system again. We found Teradata integration straightforward and compatible with other tools.

More IBM Db2 Database pros

Quotes from Members

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

Pros

"The initial setup was easy."

"The solution is a very stable relational database and has integration with legacy systems. It is a great product."

"The most valuable feature of the IBM Db2 Database is security."

"I believe that because the support is good, they jump in and assist us in determining the root cause."

"Db2 database scalability and performance capabilities match our database needs. It covers pretty much everything a database administrator or engineer might need."

"Db2 Database has given us good results since we have started to use it. We predominantly use IBM hardware, and this is one of the reasons why we started to use Db2 Database. Db2 Database has a very good HADR capability. High availability resilience is also good in this solution. It also has pureScale, which allows you to upgrade one node to get very good and high-level resilience. If you are using a database on five nodes, you can take one node down, upgrade that, and let that node up. You can then bring the second node down, upgrade that, and so on."

"As part of your licensing with IBM, you get access to their case system, which lets you raise incidents related to software or hardware. This system is helpful for problem determination and quickly identifying issues."

"The valuable features include access path optimization, excellent performance, a robust locking mechanism, parallelism, and effective buffering in memory."

"It meets our high availability, resilience, and large-scale data management requirements."

"Oracle's performance optimization has had an excellent impact on our database."

"The interface is easy to use."

"The interface is user-friendly."

"I love the performance tuning feature of Oracle Database because it provides hints and indexing, which are very valuable. Some of its other valuable features are its rack, record key vaults, and backup compression."

"The scalability is very good, and it is stable."

"There is a lot of functionality in Oracle Database. The reports and the GUI are good."

"The ease of migration between databases."

More Oracle Database pros

"The most valuable feature of Teradata is security. It runs on Unix and Linux platforms which provide better security."

"The functionality of the solution is excellent."

"The most valuable features are the large volume of data and the structuring of the data to optimize it and get very optimal data warehouse solutions for customers."

"The solution's banking model, called FSLDM (Financial Services Logical Data Model), is sophisticated and good."

"The performance is great, we are able to query our data in one operation."

"It is quick, secure, and has less hassles because we don't have to involve our networking team, infrastructure, etc. It is very easy to deploy and make market ready."

"It is a stable solution. Stability-wise, I rate the solution a nine out of ten."

"It has massive parallel processing ability to do large amounts of concurrent querying."

More Teradata pros

Cons

"It would be ideal if the solution offered backup functionality. Many similar tools already do, which means Db2 is somewhat behind the curve in terms of what a customer might expect from it."

"They should simplify the management of Db2 as a relational database system. There should be the simplification of management. This is probably one of the most important asks for being successful in the future."

"The user interface is old and needs to be improved."

"The technical support can be faster."

"I would say that the tool has to be made more cloud-friendly and should have agreements with AWS, Microsoft, or Google to run things on hyperscalers."

"The product’s user interface is not easy to use."

"The solution's data retrieval speed could be improved, especially for heavy queries. Better optimization or indexing might also be involved."

"We need some time to improve the performance. We have to perform a weekly REORG, or else RUNSTATS for the databases."

More IBM Db2 Database cons

"The initial setup should be improved."

"The product is expensive."

"Oracle Database could improve by making migration less difficult and having better integration. For example, having the ability to communicate, using native features, to different databases. Mostly connectivity to different databases, such as open-source databases or any other database."

"They should reduce its price and provide faster support."

"The queries performance could improve compared to other products."

"The initial setup is a bit complex."

"If you want to scale, it will get even more expensive."

"The solution is not easy to use and maintain."

More Oracle Database cons

"We tried to use case Teradata for a data warehouse system, but we had some problems in relation to the Teradata system, CDC tools, and source databases. We were unable to transfer data from HPE Integrity mainframe to Teradata."

"Teradata is an expensive tool. Like, if you're already using Microsoft products like Windows, they'll market all their products together. And with the rise of cloud technologies, companies will adopt solutions that offer them some privileges or facilities. Similar to how SAP does it in the market, so do Microsoft and other companies. Even Oracle and other such tools are quite commonly seen compared to Teradata's competitors in everyday solutions."

"Teradata has a few AI models, but in data science, we need more flexibility."

"I think the UI is not there yet. It could be improved by being more user-friendly."

"I'm not sure about the unstructured data management capabilities. It could be improved."

"Teradata's pricing is quite high compared to Redshift, Synapse, or GCP alternatives."

"The following could be better: licensing, architecture openness, integration with other tools."

"Teradata should focus on functionality for building predictive models because, in that regard, it can definitely improve."

More Teradata cons

Pricing and Cost Advice

"We normally handle large size businesses and as far as I am aware, the license is negotiable based on the number of users and the quantitative data."

"If I consider the price of IBM Db2 Database, I would say there are cheaper products in the market."

"They are competitive and honest (compared to how peer firms approach licensing conversations). "

"Clients are required to purchase a license."

"It's very expensive for West African countries like ours."

"We did not buy it. It came with our hardware without any complimentary maintenance. If I compare Db2 Database with Oracle Database, its price is lower than Oracle Database."

"I rate the price of the IBM Db2 Database an eight out of ten."

"It is expensive when compared to other products."

More IBM Db2 Database pricing and cost advice

"It's not cheap, but sometimes, you get what you pay for."

"There are no licensing costs because the solution for me is open source."

"It would be a benefit if there were different pricing levels to help different size businesses."

"We mainly use a special license for ERP systems specifically, instead of a general purpose license. This ERP-focused license is very simple. You just have to use Oracle Database with an ERP system and that's it."

"It is quite expensive."

"It has an annual subscription. It is an Oracle solution, so it is a bit expensive, but that's fine."

"The price is relative. Licensing costs differ based on how often you'll use the product. They also provide discounts based on the bandwidth or the use cases you want to run on it."

"I do not have first-hand knowledge of the price of the support. However, I have heard from my seniors or the experienced people who work on the pricing and scaling, the price of Oracle is a bit higher. The reason is Oracle provides enterprise-level applications, only large enterprises can afford Oracle applications or tools."

More Oracle Database pricing and cost advice

"When looking into implementing this product, pricing is the main issue followed by technical expertise."

"The price of the solution could be reduced, it is expensive."

"The price of Teradata is on the higher side, and I think that it where they lose out on some of their business."

"I would advise others to look into migration and setup as a fixed price and incorporate a SaaS option for other Teradata services."

"The price needs to be more competitive as Hadoop, Redshift, Snowflake, etc are constantly making way into EDW space."

"The cost of running Teradata is quite high, but you get a good return on investment."

"It comes at a notably high cost for what it offers."

"The cost is substantial, totaling around $1.2 million, solely dedicated to upgrading the hardware."

More Teradata pricing and cost advice

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Comparison Review

it_user232068

Senior Data Architect at a pharma/biotech company with 1,001-5,000 employees

Aug 5, 2015

Netezza vs. Teradata

Original published at https://www.linkedin.com/pulse/should-i-choose-net Two leading Massively Parallel Processing (MPP) architectures for Data Warehousing (DW) are IBM PureData System for Analytics (formerly Netezza) and Teradata. I thought talking about the similarities and differences…

What do you like most about IBM Db2 Database?

Top Industries

By visitors reading reviews

Educational Organization

55%

Financial Services Firm

Computer Software Company

Manufacturing Company

Financial Services Firm

22%

Computer Software Company

12%

Manufacturing Company

Government

Financial Services Firm

26%

Computer Software Company

11%

Healthcare Company

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

Questions from the Community

Db2 database scalability and performance capabilities match our database needs. It covers pretty much everything a da...

What is your experience regarding pricing and costs for IBM Db2 Database?

IBM Db2 is an expensive solution. While I am not heavily involved with pricing, additional companies provide capabili...

What needs improvement with IBM Db2 Database?

The user interface is old and needs to be improved. It doesn't match the responsive and suggestion-rich UI of cloud s...

How do you run Oracle Database at your organization and why?

My company has been using Oracle Exadata Database Service for some years now, and we are happy with it. I will allow ...

Do you know of any disadvantages of Oracle Database?

Undoubtedly, Oracle Database is a top product in its category. But it does have its disadvantages, and for me and my ...

What is the best use for Oracle Database?

Oracle Database is flexible and can be used for many things. My company's main use case for this product is for stori...

Comparing Teradata and Oracle Database, which product do you think is better and why?

I have spoken to my colleagues about this comparison and in our collective opinion, the reason why some people may d...

Which companies use Teradata and who is it most suitable for?

Before my organization implemented this solution, we researched which big brands were using Teradata, so we knew if ...

Is Teradata a difficult solution to work with?

Teradata is not a difficult product to work with, especially since they offer you technical support at all levels if ...

SQL Server vs IBM Db2 Database

Comparisons

Compared 32% of the time

SAP HANA vs IBM Db2 Database

Compared 16% of the time

MySQL vs IBM Db2 Database

Compared 6% of the time

IBM Informix vs IBM Db2 Database

Compared 2% of the time

Oracle Multitenant vs IBM Db2 Database

Compared 2% of the time

More IBM Db2 Database Competitors

SAP HANA vs Oracle Database

Compared 22% of the time

SQL Server vs Oracle Database

Compared 13% of the time

Tibero vs Oracle Database

Compared 8% of the time

MariaDB vs Oracle Database

Compared 8% of the time

CockroachDB vs Oracle Database

Compared 3% of the time

More Oracle Database Competitors

Oracle Exadata vs Teradata

Compared 14% of the time

SQL Server vs Teradata

Compared 10% of the time

Snowflake vs Teradata

Compared 7% of the time

MySQL vs Teradata

Compared 6% of the time

SAP HANA vs Teradata

Compared 3% of the time

More Teradata Competitors

Product Reports

Download IBM Db2 Database product report

IBM Db2 Database

May 2025

Download Oracle Database product report

Oracle Database

March 2025

Download Teradata product report

April 2025

Also Known As

DB2

Oracle 12c, RDBMS

IntelliFlex, Aster Data Map Reduce, , QueryGrid, Customer Interaction Manager, Digital Marketing Center, Data Mover, Data Stream Architecture

Overview

DB2 Enterprise for Linux, UNIX, and Windows is the ideal data server for the most demanding workloads. New XML support is designed to help firms minimize the time and effort it takes to persist and use their XML data reducing development costs and improving business agility.

IBM

Oracle Database is a top-ranking multi-model database management system by Oracle Corporation. Through Oracle database services and products, clients receive cost-optimized and high-performing versions of Oracle Database, as well as in-memory, NoSQL, and MySQL databases. The solution is available by several service providers on premises, in the cloud, or as a hybrid installation. It can be run on vendor servers as well as on Oracle hardware, including Exadata on-premise, Oracle Cloud, or Cloud at Customer.

Users can select from various types of Oracle Database solutions, depending on what they aim to do with this product. Based on their specific needs, they can choose among options that include:

Autonomously managed Oracle databases: This type of database eliminates the complexity of operating and securing Oracle Database, while simultaneously ensuring high levels of performance, scalability, and availability for users.
Oracle Database on Exadata: Users who seek particularly fast platforms can select this type of running solution. Exadata is a computing platform that is optimized for running Oracle Databases and it serves as the fastest platform for Oracle Database.
Oracle Database on-premises deployment: The product allows for deployment on-premises for clients who have data residency and network latency concerns. This option also offers customers the benefit of updated Oracle Cloud technology, including Exadata and Autonomous Database.
Oracle Database in the cloud: Organizations can use a specific version of this tool in the cloud, benefiting from complete control over the versions they run and when these versions change.

Part of this product is a fully automated database service called Oracle Autonomous Database, which facilitates the development and deployment of application workloads for organizations. It is built on Oracle Database as well as on Oracle Exadata. This service supports various data types and simplifies application development and deployment from modeling and coding to extract, transform, load process (ETL), data analysis, and database optimization. The service achieves high results in:

Performance
Availability
Security for online transaction processing (OLTP)
Analytics
Batch
Internet of Things (IoT) workloads

Oracle Database Features

Oracle Database has various features which users can utilize in their work with the solution. Among these features are the following:

Backup and recovery: Oracle Database ensures the integrity of users' data in system failure situations. This feature utilizes a tool named Recovery Manager (RMAN), which allows administrators to perform cold, hot, and incremental database backups, as well as point-in-time recoveries.
Clustering: This feature enables high availability of systems in order to run without interruption of services on occasions when one or more servers in a cluster fail. Included is a tool called Oracle Real Application Clusters.
Data dictionary: Through this set of internal tables and views, Oracle Database can be administered more efficiently.
Logical data structure: Through its feature for logical data structure, Oracle Database stores data in a way that allows users to interact with the database without knowing where the physical storage of the data is located.
Memory catching: Through the memory caching architecture feature, users can scale up very large databases and still perform at a considerably high speed.
Partitioning: This feature allows users to divide large tables into different pieces and store the pieces across storage devices.

Oracle Database Benefits

Oracle Database offers its users various benefits. Some of these include:

The solution decreases costs for organizations and provides a high return on investment (ROI) through the multiple services and features it offers.
Oracle Database has high-security protection which includes encryption, key management, data masking, and activity monitoring, that secures organizations' data within the tool.
The tool offers users the ability to use a single database for all data types, simplifying the process for them.
Oracle Database can be deployed in multiple places, including data centers and public and private clouds, which allows great flexibility for users.
The product allows applications from different platforms to communicate with the database through its networking stack.
Oracle Database is ACID-compliant, which helps maintain data reliability and integrity.

Reviews from Real Users

Paul S., president at Advance Consulting Enterprise, likes Oracle Database because it gets the job done, doesn't fail, and suitable for massively scalable applications.

An Oracle DBA at a computer software company describes Oracle Database as reliable with good performance and very good stability.

Oracle

Teradata is a scalable data analytics platform designed to meet enterprise demands for large-scale data management and processing, focusing on performance, scalability, and security for complex query executions.

As a leading data warehousing solution, Teradata integrates advanced analytics enabling organizations to derive insights from massive datasets. It supports high-volume data workloads with its architecture optimized for analytical queries. Users benefit from its robust scalability, allowing seamless expansion as data grows. Teradata's SQL engine is compatible with a wide range of data types, ensuring flexibility in data analysis. With advanced security measures, it protects sensitive data across various environments, providing peace of mind to users handling critical information.

What are the most important features of Teradata?

Linear Scalability: Easily expands data processing capabilities to handle increasing data loads without performance degradation.
Advanced Analytics: Supports complex analytical operations integrating machine learning and AI for predictive insights.
SQL Compatibility: Offers a comprehensive SQL interface that supports complex queries across diverse data types.
Data Security: Implements rigorous security protocols to protect data integrity and confidentiality.

What benefits and ROI should users look for?

Improved Decision-Making: Derive actionable insights quickly for strategic business decisions.
Cost Efficiency: Optimized resource usage reduces operational costs associated with data processing.
Increased Productivity: Streamlined data operations save time, allowing teams to focus on analysis.
Enhanced Scalability: Seamless growth without significant additional investment as data volumes increase.

Teradata is widely used in industries like finance, telecommunications, and healthcare, where data-driven decisions are critical. Companies leverage its robust analytics capabilities to enhance customer experiences, streamline operations, and ensure compliance with regulatory requirements. In these sectors, quick access to data insights can significantly impact competitive advantage.

Sample Customers

Knorr-Bremse, Mizuho Bank Ltd., Australian Government Department of Defence, SCHWENK Zement, Friedhelm Loh Group, YAZAKI Europe Limited, Ekornes ASA, Baldor Electric, VSN Systemen BV, Lion Brewery (Ceylon) PLC, PLANSEE Group, TE Connectivity, Hansgrohe SE, Openmatics, University of Toronto

Agncia Nacional de guas, Anbima, Aria Systems, Asiana Airlines, Astelit LLC, Australian Finance Group, Banco Occidental de Descuento, Bharat Petroleum Corporation Limited, BT, Caja de Seguros S.A., Casas GEO S.A.B. de C.V., Comic Relief UK, Corsair Components Inc., CSAM Health AS, CSOB Group, Datacraft Solutions, DenizBank A.S., Department of Treasury and Finance WA, Office of State Revenue, Deutsche B_rse AG, Deutsche Lufthansa AG, Deutsche Messe AG, Digicel Haiti, DPR COSEA, Essar Group, Essatto Software Pty Ltd, Farmšcia e Drogaria Nissei Ltda., Fomento Econ‹mico Mexicano S.A.B. de C.V. (FEMSA), FundaÊo Petrobras de Seguridade Social, Future Group, GFKL Financial Services AG, Grupo Posadas S.A.B. de C.V., Grupo Sinosserra, Guerra S.A. Implementos Rodovišrios, Hanatour International Service, Hays plc, Henan Mobile Co. Ltd, Hochschule Hof, Hong Kong and China Technology (Wuhan) Co. Ltd (Towngas Technology), Industries Corpa_al C.A., Infrastructure Development Finance Company Limited, Instituto Brasileiro de Geografia e Estatstica, Instituto Mexicano de la Propiedad Industrial, Kcell, LinkShare Corporation, MercadoLibre Inc., MetLife Inc., Nextgen Distribution, €BB-IKT GmbH, Octagon Research Solutions, Pacific Lutheran University, Paragon Data GmbH, Ping ltd., PJSC Trustbank, Prodaub _ Processamento de Dados de Uberl_ndia, Purdue University, Redknee Inc., Robi Axiata Limited, Shanghai Infoservice Technology Co. Ltd, Shanghai Sihua Technologies Co. Ltd, Sistema de Aguas de la Ciudad de M_xico, Solihull Metropolitan Borough Council, Suddenlink Communications, Suprajit Engineering Limited, Tallink Grupp, Terminales Ro de la Plata S.A., Therap Services LLC, Think Passenger Inc., Trafigura, Transmed S.A.L Lebanon, ValeShop, VelQuest Corporation, Vodafone Group plc, West Virginia Network, WIND Hellas Telecommunications S.A

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