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DBMS > Cloudflare Workers KV vs. EJDB vs. LokiJS vs. Oracle Coherence

System Properties Comparison Cloudflare Workers KV vs. EJDB vs. LokiJS vs. Oracle Coherence

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Editorial information provided by DB-Engines
NameCloudflare Workers KV  Xexclude from comparisonEJDB  Xexclude from comparisonLokiJS  Xexclude from comparisonOracle Coherence  Xexclude from comparison
DescriptionA global, low-latency, key-value store for applications on Cloudflare with exceptionally high read volumes and low-latency.Embeddable document-store database library with JSON representation of queries (in MongoDB style)In-memory JavaScript DBMSOracles in-memory data grid solution
Primary database modelKey-value storeDocument storeDocument storeKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.39
Rank#274  Overall
#39  Key-value stores
Score0.31
Rank#296  Overall
#44  Document stores
Score0.49
Rank#260  Overall
#42  Document stores
Score1.97
Rank#129  Overall
#22  Key-value stores
Websitewww.cloudflare.com/­developer-platform/­workers-kvgithub.com/­Softmotions/­ejdbgithub.com/­techfort/­LokiJSwww.oracle.com/­java/­coherence
Technical documentationdevelopers.cloudflare.com/­kv/­apigithub.com/­Softmotions/­ejdb/­blob/­master/­README.mdtechfort.github.io/­LokiJSdocs.oracle.com/­en/­middleware/­standalone/­coherence
DeveloperCloudflareSoftmotionsOracle
Initial release2018201220142007
Current release14.1, August 2023
License infoCommercial or Open SourcecommercialOpen Source infoGPLv2Open Sourcecommercial
Cloud-based only infoOnly available as a cloud serviceyesnonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageCJavaScriptJava
Server operating systemshostedserver-lessserver-less, requires a JavaScript environment (browser, Node.js)All OS with a Java VM
Data schemeschema-freeschema-freeschema-freeschema-free
Typing infopredefined data types such as float or datenoyes infostring, integer, double, bool, date, object_idnoyes
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.nonono
Secondary indexesnonoyes infovia viewsno
SQL infoSupport of SQLnononono
APIs and other access methodsHTTP REST
Proprietary protocol
in-process shared libraryJavaScript APIJCache
JPA
RESTful HTTP API
Supported programming languagesC
C++
Dart
JavaScript
Kotlin
Python
Rust
Scala
Actionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby
JavaScript.Net
C++
Java
Server-side scripts infoStored proceduresnonoView functions in JavaScriptno
Triggersnonoyesyes infoLive Events
Partitioning methods infoMethods for storing different data on different nodesnonenoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyesnonenoneyes, with selectable consistency level
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencynoneEventual Consistency
Immediate Consistency
Foreign keys infoReferential integritynono infotypically not needed, however similar functionality with collection joins possiblenono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonono infoatomic operations within a single collection possibleconfigurable
Concurrency infoSupport for concurrent manipulation of datayesyes infoRead/Write Lockingyes
Durability infoSupport for making data persistentyesyesyes infoSerialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.yes infooptionally
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesyes
User concepts infoAccess controlnonoauthentification to access the cache via certificates or http basic authentication

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More resources
Cloudflare Workers KVEJDBLokiJSOracle Coherence
DB-Engines blog posts

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