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DBMS > atoti vs. EventStoreDB vs. IBM Db2 vs. OpenEdge

System Properties Comparison atoti vs. EventStoreDB vs. IBM Db2 vs. OpenEdge

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Editorial information provided by DB-Engines
Nameatoti  Xexclude from comparisonEventStoreDB  Xexclude from comparisonIBM Db2 infoformerly named DB2 or IBM Database 2  Xexclude from comparisonOpenEdge  Xexclude from comparison
DescriptionAn in-memory DBMS combining transactional and analytical processing to handle the aggregation of ever-changing data.Industrial-strength, open-source database solution built from the ground up for event sourcing.Common in IBM host environments, 2 different versions for host and Windows/LinuxApplication development environment with integrated database management system
Primary database modelObject oriented DBMSEvent StoreRelational DBMS infoSince Version 10.5 support for JSON/BSON documents compatible with MongoDBRelational 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
Score0.45
Rank#253  Overall
#13  Object oriented DBMS
Score1.07
Rank#181  Overall
#1  Event Stores
Score123.05
Rank#9  Overall
#6  Relational DBMS
Score3.69
Rank#78  Overall
#42  Relational DBMS
Websiteatoti.iowww.eventstore.comwww.ibm.com/­products/­db2www.progress.com/­openedge
Technical documentationdocs.atoti.iodevelopers.eventstore.comwww.ibm.com/­docs/­en/­db2documentation.progress.com/­output/­ua/­OpenEdge_latest
DeveloperActiveViamEvent Store LimitedIBMProgress Software Corporation
Initial release20121983 infohost version1984
Current release21.2, February 202112.1, October 2016OpenEdge 12.2, March 2020
License infoCommercial or Open Sourcecommercial infofree versions availableOpen Sourcecommercial infofree version is availablecommercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaC and C++
Server operating systemsLinux
Windows
AIX
HP-UX
Linux
Solaris
Windows
z/OS
AIX
HP-UX
Linux
Solaris
Windows
Data schemeyesyes
Typing infopredefined data types such as float or dateyesyes
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.yes
Secondary indexesyesyes
SQL infoSupport of SQLMultidimensional Expressions (MDX)yesyes infoclose to SQL 92
APIs and other access methodsADO.NET
JDBC
JSON style queries infoMongoDB compatible
ODBC
XQuery
JDBC
ODBC
Supported programming languagesC
C#
C++
Cobol
Delphi
Fortran
Java
Perl
PHP
Python
Ruby
Visual Basic
Progress proprietary ABL (Advanced Business Language)
Server-side scripts infoStored proceduresPythonyesyes
Triggersyesyes
Partitioning methods infoMethods for storing different data on different nodesSharding, horizontal partitioningSharding infoonly with Windows/Unix/Linux Versionhorizontal partitioning infosince Version 11.4
Replication methods infoMethods for redundantly storing data on multiple nodesyes infowith separate tools (MQ, InfoSphere)Source-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integrityyesyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID
Concurrency infoSupport for concurrent manipulation of datayes, multi-version concurrency control (MVCC)yesyes
Durability infoSupport for making data persistentyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesno
User concepts infoAccess controlfine grained access rights according to SQL-standardUsers and groups

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More resources
atotiEventStoreDBIBM Db2 infoformerly named DB2 or IBM Database 2OpenEdge
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