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DBMS > H2 vs. LokiJS vs. RRDtool

System Properties Comparison H2 vs. LokiJS vs. RRDtool

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Editorial information provided by DB-Engines
NameH2  Xexclude from comparisonLokiJS  Xexclude from comparisonRRDtool  Xexclude from comparison
DescriptionFull-featured RDBMS with a small footprint, either embedded into a Java application or used as a database server.In-memory JavaScript DBMSIndustry 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.
Primary database modelRelational DBMSDocument storeTime Series DBMS
Secondary database modelsSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score9.78
Rank#51  Overall
#31  Relational DBMS
Score0.53
Rank#233  Overall
#36  Document stores
Score2.40
Rank#117  Overall
#7  Time Series DBMS
Websitewww.h2database.comgithub.com/­techfort/­LokiJSoss.oetiker.ch/­rrdtool
Technical documentationwww.h2database.com/­html/­main.htmltechfort.github.io/­LokiJSoss.oetiker.ch/­rrdtool/­doc
DeveloperThomas MuellerTobias Oetiker
Initial release200520141999
Current release2.1.210, January 20221.7.2, May 2019
License infoCommercial or Open SourceOpen Source infodual-licence (Mozilla public license, Eclipse public license)Open SourceOpen Source infoGPL V2 and FLOSS
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaJavaScriptC infoImplementations in Java (e.g. RRD4J) and C# available
Server operating systemsAll OS with a Java VMserver-less, requires a JavaScript environment (browser, Node.js)HP-UX
Linux
Data schemeyesschema-freeyes
Typing infopredefined data types such as float or dateyesnoNumeric data only
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 possible
Secondary indexesyesyes infovia viewsno
SQL infoSupport of SQLyesnono
APIs and other access methodsJDBC
ODBC
JavaScript APIin-process shared library
Pipes
Supported programming languagesJavaJavaScriptC 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
Server-side scripts infoStored proceduresJava Stored Procedures and User-Defined FunctionsView functions in JavaScriptno
Triggersyesyesno
Partitioning methods infoMethods for storing different data on different nodesnonenonenone
Replication methods infoMethods for redundantly storing data on multiple nodesWith clustering: 2 database servers on different computers operate on identical copies of a databasenonenone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistencynonenone
Foreign keys infoReferential integrityyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDno infoatomic operations within a single collection possibleno
Concurrency infoSupport for concurrent manipulation of datayes, multi-version concurrency control (MVCC)yes infoby using the rrdcached daemon
Durability infoSupport for making data persistentyesyes infoSerialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.yes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyes
User concepts infoAccess controlfine grained access rights according to SQL-standardnono

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H2LokiJSRRDtool
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