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DBMS > Cloudflare Workers KV vs. Dgraph vs. H2GIS vs. LokiJS

System Properties Comparison Cloudflare Workers KV vs. Dgraph vs. H2GIS vs. LokiJS

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Editorial information provided by DB-Engines
NameCloudflare Workers KV  Xexclude from comparisonDgraph  Xexclude from comparisonH2GIS  Xexclude from comparisonLokiJS  Xexclude from comparison
DescriptionA global, low-latency, key-value store for applications on Cloudflare with exceptionally high read volumes and low-latency.Distributed and scalable native Graph DBMSSpatial extension of H2In-memory JavaScript DBMS
Primary database modelKey-value storeGraph DBMSSpatial DBMSDocument store
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.39
Rank#274  Overall
#39  Key-value stores
Score1.53
Rank#152  Overall
#15  Graph DBMS
Score0.08
Rank#368  Overall
#7  Spatial DBMS
Score0.49
Rank#260  Overall
#42  Document stores
Websitewww.cloudflare.com/­developer-platform/­workers-kvdgraph.iowww.h2gis.orggithub.com/­techfort/­LokiJS
Technical documentationdevelopers.cloudflare.com/­kv/­apidgraph.io/­docswww.h2gis.org/­docs/­hometechfort.github.io/­LokiJS
DeveloperCloudflareDgraph Labs, Inc.CNRS
Initial release2018201620132014
License infoCommercial or Open SourcecommercialOpen Source infoApache 2.0Open Source infoLGPL 3.0Open Source
Cloud-based only infoOnly available as a cloud serviceyesnonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageGoJavaJavaScript
Server operating systemshostedLinux
OS X
Windows
server-less, requires a JavaScript environment (browser, Node.js)
Data schemeschema-freeschema-freeyesschema-free
Typing infopredefined data types such as float or datenoyesyesno
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.nononono
Secondary indexesnoyesyesyes infovia views
SQL infoSupport of SQLnonoyesno
APIs and other access methodsHTTP REST
Proprietary protocol
GraphQL query language
gRPC (using protocol buffers) API
HTTP API
JavaScript API
Supported programming languagesC
C++
Dart
JavaScript
Kotlin
Python
Rust
Scala
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
JavaJavaScript
Server-side scripts infoStored proceduresnonoyes infobased on H2View functions in JavaScript
Triggersnonoyesyes
Partitioning methods infoMethods for storing different data on different nodesyesnonenone
Replication methods infoMethods for redundantly storing data on multiple nodesyesSynchronous replication via Raftyes infobased on H2none
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyImmediate ConsistencyImmediate Consistencynone
Foreign keys infoReferential integritynonoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDACIDno infoatomic operations within a single collection possible
Concurrency infoSupport for concurrent manipulation of datayesyesyes, multi-version concurrency control (MVCC)
Durability infoSupport for making data persistentyesyesyesyes infoSerialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesyes
User concepts infoAccess controlno infoPlanned for future releasesyes infobased on H2no

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More resources
Cloudflare Workers KVDgraphH2GISLokiJS
DB-Engines blog posts

New kids on the block: database management systems implemented in JavaScript
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