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DBMS > EJDB vs. Kdb vs. ObjectBox vs. Speedb

System Properties Comparison EJDB vs. Kdb vs. ObjectBox vs. Speedb

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Editorial information provided by DB-Engines
NameEJDB  Xexclude from comparisonKdb  Xexclude from comparisonObjectBox  Xexclude from comparisonSpeedb  Xexclude from comparison
DescriptionEmbeddable document-store database library with JSON representation of queries (in MongoDB style)High performance Time Series DBMSExtremely fast embedded database for small devices, IoT and MobileAn embeddable, high performance key-value store optimized for write-intensive workloads, which can be used as a drop-in replacement for RocksDB
Primary database modelDocument storeTime Series DBMS
Vector DBMS
Object oriented DBMSKey-value store
Secondary database modelsRelational DBMSTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.31
Rank#296  Overall
#44  Document stores
Score7.71
Rank#49  Overall
#2  Time Series DBMS
#1  Vector DBMS
Score1.29
Rank#166  Overall
#5  Object oriented DBMS
Score0.26
Rank#310  Overall
#45  Key-value stores
Websitegithub.com/­Softmotions/­ejdbkx.comobjectbox.iowww.speedb.io
Technical documentationgithub.com/­Softmotions/­ejdb/­blob/­master/­README.mdcode.kx.comdocs.objectbox.io
DeveloperSoftmotionsKx Systems, a division of First Derivatives plcObjectBox LimitedSpeedb
Initial release20122000 infokdb was released 2000, kdb+ in 200320172020
Current release3.6, May 2018
License infoCommercial or Open SourceOpen Source infoGPLv2commercial infofree 32-bit versionOpen Source infoApache License 2.0Open Source infoApache Version 2.0; commercial license available
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageCqC and C++C++
Server operating systemsserver-lessLinux
OS X
Solaris
Windows
Android
iOS
Linux
macOS
Windows
Linux
Windows
Data schemeschema-freeyesyesschema-free
Typing infopredefined data types such as float or dateyes infostring, integer, double, bool, date, object_idyesyesno
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.yesnono
Secondary indexesnoyes infotable attribute 'grouped'yesno
SQL infoSupport of SQLnoSQL-like query language (q)nono
APIs and other access methodsin-process shared libraryHTTP API
JDBC
Jupyter
Kafka
ODBC
WebSocket
Proprietary native API
Supported programming languagesActionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby
C
C#
C++
Go
J
Java
JavaScript
Lua
MatLab
Perl
PHP
Python
R
Scala
C
C++
Dart
Go
Java
JavaScript infoplanned (as of Jan 2019)
Kotlin
Python infoplanned (as of Jan 2019)
Swift
C
C++
Go
Java
Perl
Python
Ruby
Server-side scripts infoStored proceduresnouser defined functionsnono
Triggersnoyes infowith viewsno
Partitioning methods infoMethods for storing different data on different nodesnonehorizontal partitioningnonehorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesnoneSource-replica replicationonline/offline synchronization between client and serveryes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono infosimilar paradigm used for internal processingnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityno infotypically not needed, however similar functionality with collection joins possibleyesyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoACIDyes
Concurrency infoSupport for concurrent manipulation of datayes infoRead/Write Lockingyesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyes
User concepts infoAccess controlnorights management via user accountsyesno
More information provided by the system vendor
EJDBKdbObjectBoxSpeedb
Specific characteristicsIntegrated columnar database & programming system for streaming, real time and historical...
» more
Speedb is an embedded key-value storage engine for versatile use cases. It was designed...
» more
Competitive advantagesprovides seamless scalability; runs on industry standard server platforms; is top-ranked...
» more
Speedb Open-source rebases on RocksDB's latest versions, with enhanced capabilities...
» more
Typical application scenariostick database streaming sensor data massive intelligence applications oil and gas...
» more
Key customersGoldman Sachs Morgan Stanley Merrill Lynch J.P. Morgan Deutsche Bank IEX Securities...
» more
Market metricskdb+ performance and reliability proven by our customers in critical infrastructure...
» more
Licensing and pricing modelsupon request
» more
Open source - Speedb OSS is released under an Apache license and can be found on...
» more
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