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DBMS > EJDB vs. KairosDB vs. OpenEdge

System Properties Comparison EJDB vs. KairosDB vs. OpenEdge

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Editorial information provided by DB-Engines
NameEJDB  Xexclude from comparisonKairosDB  Xexclude from comparisonOpenEdge  Xexclude from comparison
DescriptionEmbeddable document-store database library with JSON representation of queries (in MongoDB style)Distributed Time Series DBMS based on Cassandra or H2Application development environment with integrated database management system
Primary database modelDocument storeTime Series DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.27
Rank#297  Overall
#44  Document stores
Score0.62
Rank#239  Overall
#20  Time Series DBMS
Score3.51
Rank#86  Overall
#46  Relational DBMS
Websitegithub.com/­Softmotions/­ejdbgithub.com/­kairosdb/­kairosdbwww.progress.com/­openedge
Technical documentationgithub.com/­Softmotions/­ejdb/­blob/­master/­README.mdkairosdb.github.iodocumentation.progress.com/­output/­ua/­OpenEdge_latest
DeveloperSoftmotionsProgress Software Corporation
Initial release201220131984
Current release1.2.2, November 2018OpenEdge 12.2, March 2020
License infoCommercial or Open SourceOpen Source infoGPLv2Open Source infoApache 2.0commercial
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCJava
Server operating systemsserver-lessLinux
OS X
Windows
AIX
HP-UX
Linux
Solaris
Windows
Data schemeschema-freeschema-freeyes
Typing infopredefined data types such as float or dateyes infostring, integer, double, bool, date, object_idyesyes
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.noyes
Secondary indexesnonoyes
SQL infoSupport of SQLnonoyes infoclose to SQL 92
APIs and other access methodsin-process shared libraryGraphite protocol
HTTP REST
Telnet API
JDBC
ODBC
Supported programming languagesActionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby
Java
JavaScript infoNode.js
PHP
Python
Progress proprietary ABL (Advanced Business Language)
Server-side scripts infoStored proceduresnonoyes
Triggersnonoyes
Partitioning methods infoMethods for storing different data on different nodesnoneSharding infobased on Cassandrahorizontal partitioning infosince Version 11.4
Replication methods infoMethods for redundantly storing data on multiple nodesnoneselectable replication factor infobased on CassandraSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Immediate Consistency
Foreign keys infoReferential integrityno infotypically not needed, however similar functionality with collection joins possiblenoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoACID
Concurrency infoSupport for concurrent manipulation of datayes infoRead/Write Lockingyesyes
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.nono
User concepts infoAccess controlnosimple password-based access controlUsers and groups

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More resources
EJDBKairosDBOpenEdge
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