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DBMS > EJDB vs. Hypertable vs. Machbase Neo vs. Memcached

System Properties Comparison EJDB vs. Hypertable vs. Machbase Neo vs. Memcached

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Editorial information provided by DB-Engines
NameEJDB  Xexclude from comparisonHypertable  Xexclude from comparisonMachbase Neo infoFormer name was Infiniflux  Xexclude from comparisonMemcached  Xexclude from comparison
Hypertable has stopped its further development with March 2016 and is removed from the DB-Engines ranking.
DescriptionEmbeddable document-store database library with JSON representation of queries (in MongoDB style)An open source BigTable implementation based on distributed file systems such as HadoopTimeSeries DBMS for AIoT and BigDataIn-memory key-value store, originally intended for caching
Primary database modelDocument storeWide column storeTime Series DBMSKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.27
Rank#297  Overall
#44  Document stores
Score0.12
Rank#339  Overall
#30  Time Series DBMS
Score19.42
Rank#32  Overall
#4  Key-value stores
Websitegithub.com/­Softmotions/­ejdbmachbase.comwww.memcached.org
Technical documentationgithub.com/­Softmotions/­ejdb/­blob/­master/­README.mdmachbase.com/­dbmsgithub.com/­memcached/­memcached/­wiki
DeveloperSoftmotionsHypertable Inc.MachbaseDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournal
Initial release2012200920132003
Current release0.9.8.11, March 2016V8.0, August 20231.6.25, March 2024
License infoCommercial or Open SourceOpen Source infoGPLv2Open Source infoGNU version 3. Commercial license availablecommercial infofree test version availableOpen Source infoBSD license
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCC++CC
Server operating systemsserver-lessLinux
OS X
Windows infoan inofficial Windows port is available
Linux
macOS
Windows
FreeBSD
Linux
OS X
Unix
Windows
Data schemeschema-freeschema-freeyesschema-free
Typing infopredefined data types such as float or dateyes infostring, integer, double, bool, date, object_idnoyesno
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.no
Secondary indexesnorestricted infoonly exact value or prefix value scansyesno
SQL infoSupport of SQLnonoSQL-like query languageno
APIs and other access methodsin-process shared libraryC++ API
Thrift
gRPC
HTTP REST
JDBC
MQTT (Message Queue Telemetry Transport)
ODBC
Proprietary protocol
Supported programming languagesActionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby
C++
Java
Perl
PHP
Python
Ruby
C
C#
C++
Go
Java
JavaScript
PHP infovia ODBC
Python
R infovia ODBC
Scala
.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
Server-side scripts infoStored proceduresnononono
Triggersnononono
Partitioning methods infoMethods for storing different data on different nodesnoneShardingShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesnoneselectable replication factor on file system levelselectable replication factornone infoRepcached, a Memcached patch, provides this functionallity
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integrityno infotypically not needed, however similar functionality with collection joins possiblenonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanononono
Concurrency infoSupport for concurrent manipulation of datayes infoRead/Write Lockingyesyesyes
Durability infoSupport for making data persistentyesyesnono
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes infovolatile and lookup table
User concepts infoAccess controlnonosimple password-based access controlyes infousing SASL (Simple Authentication and Security Layer) protocol

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More resources
EJDBHypertableMachbase Neo infoFormer name was InfinifluxMemcached
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