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DBMS > DB2 vs. Informix

System Properties Comparison DB2 vs. Informix

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Our visitors often compare DB2 and Informix with Oracle, Microsoft SQL Server and MySQL.

Editorial information provided by DB-Engines
NameDB2  Xexclude from comparisonInformix  Xexclude from comparison
DescriptionCommon in IBM host environments, 2 different versions for host and Windows/LinuxA secure embeddable database from IBM, optimized for OLTP and Internet of Things data
Primary database modelRelational DBMS infoSince Version 10.5 support for JSON/BSON documents compatible with MongoDBRelational DBMS infoSince Version 12.10 support for JSON/BSON datatypes compatible with MongoDB
Secondary database modelsDocument store
Key-value store
RDF store infoin DB2 LUW (Linux, Unix, Windows)
Document store
Key-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Rank#6  Overall
#5  Relational DBMS
Rank#26  Overall
#15  Relational DBMS
Technical documentationwww.ibm.com/­support/­knowledgecenter/­SSEPGGwww.ibm.com/­support/­knowledgecenter/­SSGU8G/­welcomeIfxServers.html
DeveloperIBMIBM, HCL Technologies infoEffective May 1st, 2017, HCL will take on development, technical support, and product management teams, and will work jointly with IBM on product strategy, marketing, and sales.
Initial release1983 infohost version1984
Current releaseDb2 Data Server (11.1), April 201612.10.xC7, June 2016
License infoCommercial or Open Sourcecommercial infofree version is availablecommercial infofree developer edition available
Cloud-based infoOnly available as a cloud servicenono
Implementation languageC and C++C and C++
Server operating systemsAIX
Data schemeyesyes
Typing infopredefined data types such as float or dateyesyes infoSince Version 12.10 support for JSON/BSON datatypes
Secondary indexesyesyes
SQL infoSupport of SQLyesyes
APIs and other access methodsJSON style queries infoMongoDB compatible
JSON style queries infoMongoDB compatible
Supported programming languagesC
Visual Basic
Server-side scripts infoStored proceduresyesyes
Partitioning methods infoMethods for storing different data on different nodesSharding infoonly with Windows/Unix/Linux Versionyes infoextended query functionality with Informix Flexible Grid Technology (since 12.10)
Replication methods infoMethods for redundantly storing data on multiple nodesyes infowith separate tools (MQ, InfoSphere)Master-master replication
Master-slave replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Foreign keys infoReferential integrityyesyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes
User concepts infoAccess controlfine grained access rights according to SQL-standardUsers with fine-grained authorization concept

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Conferences and events

IDUG Db2 Tech Conference Europe 2018
Malta, 4-8 November 2018

IIUG Informix Conference 2018
Arlington, Virginia, USA, 28 October 2018 - 1 November 2018

Recent citations in the news

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