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DBMS > LokiJS vs. PouchDB vs. RRDtool vs. YDB

System Properties Comparison LokiJS vs. PouchDB vs. RRDtool vs. YDB

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Editorial information provided by DB-Engines
NameLokiJS  Xexclude from comparisonPouchDB  Xexclude from comparisonRRDtool  Xexclude from comparisonYDB  Xexclude from comparison
DescriptionIn-memory JavaScript DBMSJavaScript DBMS with an API inspired by CouchDBIndustry standard data logging and graphing tool for time series data. RRD is an acronym for round-robin database. infoThe data is stored in a circular buffer, thus the system storage footprint remains constant over time.A distributed fault-tolerant database service, with high availability, scalability, immediate consistency and ACID transactions and providing an Amazon DynamoDB compatible API
Primary database modelDocument storeDocument storeTime Series DBMSDocument store
Relational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.49
Rank#260  Overall
#42  Document stores
Score2.34
Rank#112  Overall
#21  Document stores
Score1.90
Rank#132  Overall
#11  Time Series DBMS
Score0.33
Rank#287  Overall
#43  Document stores
#132  Relational DBMS
Websitegithub.com/­techfort/­LokiJSpouchdb.comoss.oetiker.ch/­rrdtoolgithub.com/­ydb-platform/­ydb
ydb.tech
Technical documentationtechfort.github.io/­LokiJSpouchdb.com/­guidesoss.oetiker.ch/­rrdtool/­docydb.tech/­en/­docs
DeveloperApache Software FoundationTobias OetikerYandex
Initial release2014201219992019
Current release7.1.1, June 20191.8.0, 2022
License infoCommercial or Open SourceOpen SourceOpen SourceOpen Source infoGPL V2 and FLOSSOpen Source infoApache 2.0; commercial license available
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaScriptJavaScriptC infoImplementations in Java (e.g. RRD4J) and C# available
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)server-less, requires a JavaScript environment (browser, Node.js)HP-UX
Linux
Linux
Data schemeschema-freeschema-freeyesFlexible Schema (defined schema, partial schema, schema free)
Typing infopredefined data types such as float or datenonoNumeric data onlyyes
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 infoExporting into and restoring from XML files possibleno
Secondary indexesyes infovia viewsyes infovia viewsnoyes
SQL infoSupport of SQLnononoSQL-like query language (YQL)
APIs and other access methodsJavaScript APIHTTP REST infoonly for PouchDB Server
JavaScript API
in-process shared library
Pipes
RESTful HTTP API (DynamoDB compatible)
Supported programming languagesJavaScriptJavaScriptC infowith librrd library
C# infowith a different implementation of RRDTool
Java infowith a different implementation of RRDTool
JavaScript (Node.js) infowith a different implementation of RRDTool
Lua
Perl
PHP infowith a wrapper library
Python
Ruby
Go
Java
JavaScript (Node.js)
PHP
Python
Server-side scripts infoStored proceduresView functions in JavaScriptView functions in JavaScriptnono
Triggersyesyesno
Partitioning methods infoMethods for storing different data on different nodesnoneSharding infowith a proxy-based framework, named couchdb-loungenoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneMulti-source replication infoalso with CouchDB databases
Source-replica replication infoalso with CouchDB databases
noneActive-passive shard replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneEventual ConsistencynoneImmediate Consistency
Foreign keys infoReferential integritynononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano infoatomic operations within a single collection possiblenonoACID
Concurrency infoSupport for concurrent manipulation of datayes infoby using the rrdcached daemonyes
Durability infoSupport for making data persistentyes infoSerialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.yes infoby using IndexedDB, WebSQL or LevelDB as backendyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyesno
User concepts infoAccess controlnononoAccess rights defined for Yandex Cloud users

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More resources
LokiJSPouchDBRRDtoolYDB
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