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DBMS > IBM Db2 vs. jBASE vs. OpenQM

System Properties Comparison IBM Db2 vs. jBASE vs. OpenQM

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Editorial information provided by DB-Engines
NameIBM Db2 infoformerly named DB2 or IBM Database 2  Xexclude from comparisonjBASE  Xexclude from comparisonOpenQM infoalso called QM  Xexclude from comparison
DescriptionCommon in IBM host environments, 2 different versions for host and Windows/LinuxA robust multi-value DBMS comprising development tools and middlewareQpenQM is a high-performance, self-tuning, multi-value DBMS
Primary database modelRelational DBMS infoSince Version 10.5 support for JSON/BSON documents compatible with MongoDBMultivalue DBMSMultivalue DBMS
Secondary database modelsDocument store
RDF store infoin Db2 LUW (Linux, Unix, Windows)
Spatial DBMS infowith Db2 Spatial Extender
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score165.46
Rank#7  Overall
#5  Relational DBMS
Score1.69
Rank#130  Overall
#3  Multivalue DBMS
Score0.43
Rank#250  Overall
#9  Multivalue DBMS
Websitewww.ibm.com/­analytics/­db2www.jbase.comwww.openqm.com
Technical documentationwww.ibm.com/­support/­knowledgecenter/­SSEPGGdocs.zumasys.com/­jbasewww.openqm.com/­support/­documentation
DeveloperIBMZumasysMartin Phillips
Initial release1983 infohost version19911993
Current release12.1, October 20165.73.4-12
License infoCommercial or Open Sourcecommercial infofree version is availablecommercialOpen Source infoGPLv2, extended commercial license available
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC and C++
Server operating systemsAIX
HP-UX
Linux
Solaris
Windows
z/OS
AIX
Linux
Windows
AIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
Data schemeyesschema-freeyes infowith some exceptions
Typing infopredefined data types such as float or dateyesoptional
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.yesyes
Secondary indexesyesyes
SQL infoSupport of SQLyesEmbedded SQL for jBASE in BASICno
APIs and other access methodsADO.NET
JDBC
JSON style queries infoMongoDB compatible
ODBC
XQuery
JDBC
ODBC
Proprietary protocol
RESTful HTTP API
SOAP-based API
Supported programming languagesC
C#
C++
Cobol
Delphi
Fortran
Java
Perl
PHP
Python
Ruby
Visual Basic
.Net
Basic
Jabbascript
Java
.Net
Basic
C
Java
Objective C
PHP
Python
Server-side scripts infoStored proceduresyesyesyes
Triggersyesyesyes
Partitioning methods infoMethods for storing different data on different nodesSharding infoonly with Windows/Unix/Linux VersionShardingyes
Replication methods infoMethods for redundantly storing data on multiple nodesyes infowith separate tools (MQ, InfoSphere)yesyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integrityyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes
User concepts infoAccess controlfine grained access rights according to SQL-standardAccess rights can be defined down to the item levelAccess rights can be defined down to the item level

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More resources
IBM Db2 infoformerly named DB2 or IBM Database 2jBASEOpenQM infoalso called QM
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