Compare IBM Db2 vs. Oracle Database

IBM Db2 is ranked 4th in Relational Databases with 10 reviews while Oracle Database is ranked 1st in Relational Databases with 16 reviews. IBM Db2 is rated 8.0, while Oracle Database is rated 8.2. The top reviewer of IBM Db2 writes "Offers a valuable Database Partitioning Feature and has good performance ". On the other hand, the top reviewer of Oracle Database writes "Enables us to combine all the sophisticated architectures in the market". IBM Db2 is most compared with Oracle Database, SQL Server and MySQL, whereas Oracle Database is most compared with IBM Db2, SQL Server and Tibero. See our IBM Db2 vs. Oracle Database report.
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IBM Db2 Logo
13,273 views|10,690 comparisons
Oracle Database Logo
18,733 views|14,554 comparisons
Most Helpful Review
Find out what your peers are saying about IBM Db2 vs. Oracle Database and other solutions. Updated: March 2020.
406,860 professionals have used our research since 2012.
Quotes From Members

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

Pros
Very good for performance and scalability.IBM Db2 was much cheaper as a package than using other products. This is because IBM supplied a package with its product. It's an application. So it was much more efficient and a stronger competitor in that regard.When you submit a ticket the response time is quick.We had a crash of the backup system and the IBM DB2 was always up and consistent. It's robust, and for us, it was always up and running.The self-management and optimization features are probably the best on the marketThe solution is very stable, in both hardware and database.The most valuable features of this solution are security and stability.The scalability and availability of this solution are the most valuable features.

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The most valuable features of this solution are the cost optimizer and partition exchanges.Oracle Database is fast and easy to use.Oracle enables us to handle more than a million daily transactions.This solution has the best performance, bar none.The feature I find most valuable about this solution is the reliability.It has automatic memory management capability and large file capability.The features that we find most valuable are Data Pump, GoldenGate, and the RMAN (Recovery Manager).We use the relational databases for government contracts.

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Cons
There could be better integration with some cloud solutions.The GUI interface is not particularly friendly for those who do not have experience with the product.In terms of improvements, IBM Db2 can improve its interface and its functionality. Also, the embedded functions should be much richer than the current ones - the functions which are embedded in the engine itself.The price should be lower.The licensing fees can be reduced.The ease of use, or ease of management, could be improved.End-to-end encryption specifically is something the solution needs to have in the next release.It would be helpful to have more querying tools and more development tools for us to work easily with Microsoft.

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The cost of this solution needs to be improved.Cheap and easy solutions for startups need to be made available.The price tag is very high and most cannot afford it.The documentation needs improvement because as it is now, providing support is a headache.The product is very expensive.The Oracle Database could improve on integration with other infrastructure systems like Active Directory.This product would be improved with Support Services for more production access.It is expensive.

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Pricing and Cost Advice
I think that everyone knows that with IBM the standard price is higher than the others.We don't see what the specific price of the DB2 license is because we pay for the backup license as a package.Licensing fees are on a yearly basis.

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It is an excellent product, as long as the organization can afford the price tag.The price is very expensive for the support.The main issue where I feel that Oracle still has a problem is with the licensing. Licensing is still expensive and the reason why today most startups use other, cheaper databases. Those other databases are much less sophisticated than Oracle.

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Answers from the Community
Nurit Sherman
author avatarRehana Parvin
Real User

I think -- Oracle is well known for its performance and security feature and continuous efforts to reach the highest level of performance.
A few comparisons are given below:
1. Oracle has multi version read consistency -- but not in DB2
2. In oracle, neither read nor write blocks each other-- DB2 -read blocks write and write blocks read
3. No Dead locks under load in Oracle whereas deadlock is a serious problem in DB2
4. In Oracle --intelligent advisories such as SQL Tuning, Index, Summary, MTTR but in DB2 only Index advisory presents. In terms of Self-tuning capabilities-- Oracle has Automatic Performance Diagnosis, Automatic SQL Tuning , Self-tuning memory, free space, and I/O management and so on but in DB2 No equivalent or limited capabilities
Besides all good features exist in Oracle but it is bit complex. When problem occurs then figuring out the right problem in a very short time has become a challenge, Also Oracle is bit expensive.
There are a lot more difference. I think you can find good resource by searching online.
I think all database software has their own advantages and disadvantages. Depending on the budget and compromises in which feature loss they can afford--companies decide their choices.


author avatarMartin Spratt (2300+ Connections)
Real User

Both DB2 and Oracle are legacy relational databases. 20+ years ago you might pick DB2 for reliability and scalability, but today you would choose Oracle for the sheer size of partners, applications, skills and tools available. So if you have to pick today, I would choose Oracle (I am an ex IBM DB2 Lab person and used to be VERY DB2 bias as it's an excellent engine)... and if I ask you more detailed application and business landscape questions I would recommend decommissioning BOTH those legacy databases and move to PostgreSQL, MariaDB or MySQL (MySQL is ironically now owned by Oracle too), and cloud host your database farm. If you had to pick a legacy "perpetual license" relational database I would go wall to wall MS SQLServer. That's what I would generally recommend without knowing more about your application or business landscape. (SAP, Apps, Mobility, Cloud, Regulatory, Security, HA, Scale, etc etc).

author avatarSydney Chidambaram
Consultant

I have worked on both, I kind of agree and disagree with the first repsonse, Both are very stable databases, I work currently on Oracle, and have worked for 20 years on DB2 on I-series and S38.
Both have its place, it is totally dependant on your requirement. However DB2 is shipped free with the IBM platform, oracle comes at a cost.

Your business requirement and the person in charge of your IT systems should be able to tell you which one would suit your business, All the other databases mentioned can also do the job.

A full business analysis will need to be done to understand where your business is now and what the future expectation is so that you can make the best choice.

author avatarMario Soberanis
Real User

IBM DB2 is a real legacy system database, that is use in old companies like
telecom, its really couple with the mainframes of IBM really robust but
wasn't build with the internet in mind Oracle on the other hand is a more
modern Database it has more use cases and it also super robust but really
expensive (both are fore big companies) the main differences is that Oracle
runs on normal Linux box and DB2 has to work on a IBM mainframe ... the
language is more dynamic and modern in oracle

hope this helps a bit what is better is alway a "it depends on what you
want to build" for me I think a more modern noSQL data base is better in
this post internet and cloud era

author avatarPratap Negi
Consultant

Few more differences......
While IBM mainframe DB2 has a decades-long head start on the mainframe, UDB and Oracle are in a head to head competition for implementing a vast array of security features.
Oracle offers the integrated APEX development platform and SQL*Forms.
Oracle has the Procedural language SQL (PL/SQL) vs. DB2 UDB with their SQL Procedural language (SQL/PL).
Both UDB and Oracle offer a host of HA features for continuous availability. Oracle offers RAC clusters for shared database, plus replication solution vs. Oracle Streams, Oracle Data Guard and Oracle advanced multi-master replication.
While both UDB and Oracle have ANSI standard SQL, vendors have a strong incentive to add "extensions", such as Oracle with their unique DECODE operator.
Both UDB and Oracle are struggling to incorporate automated features to make database administration easier and more automated. For Oracle we see automated storage management (ASM), automated memory management (AMM), and automated database diagnostic management (ADDM).
A critical area of database management, both UDB and Oracle offer backup and recovery features. Within Oracle's Recovery Manager (RMAN), we see block-level backups and hot backups.

author avatarArchitect at a comms service provider with 10,001+ employees
Vendor

Well if you are asking for my opinion I will give it to you - I prefer DB2 over Oracle in most cases - Oracle has some weird data type inconsistencies like with timestamps, dates and variable fields.  I think DB2 seems to be faster for general transactions in most cases but of course, it all depends on the horses on the server underneath them.  I learned databases in a shot that had both DB2 and Oracle and DB2 was by far the easier to use and work with.  Over the years both have evolved to be bigger faster and more powerful, but I like the db2 manager which can help troubleshoot stuff much like the SQL manager can and I think it is easier to use than the Oracle version.  It really comes down to preference as I know some Oracle guys who prefer Oracle over DB2 but I think they hate IBM so they are biased as well.  I have always had better support from IBM than Oracle and that's a big deal for most folks.  As for the big difference between them I believe is the hashing algorithm each uses to do storage, retrieval, and indexing.  I just like IBM better for those things. 

author avatarKhilitchandra Prajapati
Real User

So many differences and in almost many perspectives.

Short answer,
Compared to DB2, Oracle is clear winner. Oracle is far ahead than DB2 offerings. And also ready for future. But in my personal opinion, Microsoft SQL Server beats even Oracle.

I am sure you will many links online. So dont want to repeat that.

Thanks.

author avatarLeonidas Giannoulis
Real User

We use both databases (and some more), I would definitely suggest using Oracle against DB2 for better performance but also because it's easier to find collaboration tools and find help.
PS : My preference is MS SQL.

Ranking
4th
Views
13,273
Comparisons
10,690
Reviews
10
Average Words per Review
432
Avg. Rating
7.9
1st
Views
18,733
Comparisons
14,554
Reviews
16
Average Words per Review
288
Avg. Rating
8.3
Top Comparisons
Compared 40% of the time.
Compared 22% of the time.
Compared 12% of the time.
Compared 29% of the time.
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Compared 10% of the time.
Also Known As
DB2Oracle 12c, RDBMS
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IBM
Oracle
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.

Oracle Database 12c introduces a new multitenant architecture that makes it easy to consolidate many databases quickly and manage them as a cloud service. Oracle Database 12c also includes in-memory data processing capabilities for breakthrough analytical performance. Additional database innovations deliver new levels of efficiency, performance, security, and availability. Oracle Database 12c comes in two editions to fit your business needs and budget: Enterprise Edition and Standard Edition 2.

For more information on Oracle RDBMS, visit Oracle.com

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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 TorontoAgncia 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), FundaÊo 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 Estatstica, 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 Ro 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
Top Industries
REVIEWERS
Financial Services Firm38%
Insurance Company23%
University15%
Engineering Company8%
VISITORS READING REVIEWS
Software R&D Company32%
Insurance Company11%
Financial Services Firm10%
Comms Service Provider10%
REVIEWERS
Financial Services Firm13%
Software R&D Company12%
Government11%
Comms Service Provider8%
VISITORS READING REVIEWS
Software R&D Company39%
Comms Service Provider14%
K 12 Educational Company Or School7%
Government7%
Find out what your peers are saying about IBM Db2 vs. Oracle Database and other solutions. Updated: March 2020.
406,860 professionals have used our research since 2012.
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