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DBMS > EJDB vs. Memcached

System Properties Comparison EJDB vs. Memcached

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Editorial information provided by DB-Engines
NameEJDB  Xexclude from comparisonMemcached  Xexclude from comparison
DescriptionEmbeddable document-store database library with JSON representation of queries (in MongoDB style)In-memory key-value store, originally intended for caching
Primary database modelDocument storeKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.30
Rank#294  Overall
#44  Document stores
Score20.74
Rank#32  Overall
#4  Key-value stores
Websitegithub.com/­Softmotions/­ejdbwww.memcached.org
Technical documentationgithub.com/­Softmotions/­ejdb/­blob/­master/­README.mdgithub.com/­memcached/­memcached/­wiki
DeveloperSoftmotionsDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournal
Initial release20122003
Current release1.6.25, March 2024
License infoCommercial or Open SourceOpen Source infoGPLv2Open Source infoBSD license
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageCC
Server operating systemsserver-lessFreeBSD
Linux
OS X
Unix
Windows
Data schemeschema-freeschema-free
Typing infopredefined data types such as float or dateyes infostring, integer, double, bool, date, object_idno
Secondary indexesnono
SQL infoSupport of SQLnono
APIs and other access methodsin-process shared libraryProprietary protocol
Supported programming languagesActionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby
.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
Server-side scripts infoStored proceduresnono
Triggersnono
Partitioning methods infoMethods for storing different data on different nodesnonenone
Replication methods infoMethods for redundantly storing data on multiple nodesnonenone infoRepcached, a Memcached patch, provides this functionallity
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Foreign keys infoReferential integrityno infotypically not needed, however similar functionality with collection joins possibleno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanono
Concurrency infoSupport for concurrent manipulation of datayes infoRead/Write Lockingyes
Durability infoSupport for making data persistentyesno
User concepts infoAccess controlnoyes infousing SASL (Simple Authentication and Security Layer) protocol

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More resources
EJDBMemcached
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