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DBMS > Cloudflare Workers KV vs. H2 vs. LokiJS vs. SQL.JS

System Properties Comparison Cloudflare Workers KV vs. H2 vs. LokiJS vs. SQL.JS

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Editorial information provided by DB-Engines
NameCloudflare Workers KV  Xexclude from comparisonH2  Xexclude from comparisonLokiJS  Xexclude from comparisonSQL.JS  Xexclude from comparison
DescriptionA global, low-latency, key-value store for applications on Cloudflare with exceptionally high read volumes and low-latency.Full-featured RDBMS with a small footprint, either embedded into a Java application or used as a database server.In-memory JavaScript DBMSPort of SQLite to JavaScript
Primary database modelKey-value storeRelational DBMSDocument storeRelational DBMS
Secondary database modelsSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.32
Rank#283  Overall
#40  Key-value stores
Score8.13
Rank#49  Overall
#31  Relational DBMS
Score0.43
Rank#264  Overall
#42  Document stores
Score0.53
Rank#252  Overall
#116  Relational DBMS
Websitewww.cloudflare.com/­developer-platform/­workers-kvwww.h2database.comgithub.com/­techfort/­LokiJSsql.js.org
Technical documentationdevelopers.cloudflare.com/­kv/­apiwww.h2database.com/­html/­main.htmltechfort.github.io/­LokiJSsql.js.org/­documentation/­index.html
DeveloperCloudflareThomas MuellerAlon Zakai infoenhancements implemented by others
Initial release2018200520142012
Current release2.2.220, July 2023
License infoCommercial or Open SourcecommercialOpen Source infodual-licence (Mozilla public license, Eclipse public license)Open SourceOpen Source
Cloud-based only infoOnly available as a cloud serviceyesnonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaJavaScriptJavaScript
Server operating systemshostedAll OS with a Java VMserver-less, requires a JavaScript environment (browser, Node.js)server-less, requires a JavaScript environment (browser, Node.js)
Data schemeschema-freeyesschema-freeyes
Typing infopredefined data types such as float or datenoyesnoyes
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 indexesnoyesyes infovia views
SQL infoSupport of SQLnoyesnoyes infoSQL-92 is not fully supported
APIs and other access methodsHTTP REST
Proprietary protocol
JDBC
ODBC
JavaScript APIJavaScript API
Supported programming languagesC
C++
Dart
JavaScript
Kotlin
Python
Rust
Scala
JavaJavaScriptJavaScript
Server-side scripts infoStored proceduresnoJava Stored Procedures and User-Defined FunctionsView functions in JavaScriptno
Triggersnoyesyesno
Partitioning methods infoMethods for storing different data on different nodesnonenonenone
Replication methods infoMethods for redundantly storing data on multiple nodesyesWith clustering: 2 database servers on different computers operate on identical copies of a databasenonenone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyImmediate Consistencynonenone
Foreign keys infoReferential integritynoyesnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDno infoatomic operations within a single collection possibleACID
Concurrency infoSupport for concurrent manipulation of datayesyes, multi-version concurrency control (MVCC)
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.no infoexcept by serializing a db to a file
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesyesyes
User concepts infoAccess controlfine grained access rights according to SQL-standardnono

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More resources
Cloudflare Workers KVH2LokiJSSQL.JS
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