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DBMS > H2GIS vs. LevelDB vs. SQL.JS

System Properties Comparison H2GIS vs. LevelDB vs. SQL.JS

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Editorial information provided by DB-Engines
NameH2GIS  Xexclude from comparisonLevelDB  Xexclude from comparisonSQL.JS  Xexclude from comparison
DescriptionSpatial extension of H2Embeddable fast key-value storage library that provides an ordered mapping from string keys to string valuesPort of SQLite to JavaScript
Primary database modelSpatial DBMSKey-value storeRelational DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.08
Rank#368  Overall
#7  Spatial DBMS
Score2.25
Rank#115  Overall
#19  Key-value stores
Score0.63
Rank#241  Overall
#112  Relational DBMS
Websitewww.h2gis.orggithub.com/­google/­leveldbsql.js.org
Technical documentationwww.h2gis.org/­docs/­homegithub.com/­google/­leveldb/­blob/­main/­doc/­index.mdsql.js.org/­documentation/­index.html
DeveloperCNRSGoogleAlon Zakai infoenhancements implemented by others
Initial release201320112012
Current release1.23, February 2021
License infoCommercial or Open SourceOpen Source infoLGPL 3.0Open Source infoBSDOpen Source
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaC++JavaScript
Server operating systemsIllumos
Linux
OS X
Windows
server-less, requires a JavaScript environment (browser, Node.js)
Data schemeyesschema-freeyes
Typing infopredefined data types such as float or dateyesnoyes
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 indexesyesno
SQL infoSupport of SQLyesnoyes infoSQL-92 is not fully supported
APIs and other access methodsJavaScript API
Supported programming languagesJavaC++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
JavaScript
Server-side scripts infoStored proceduresyes infobased on H2nono
Triggersyesnono
Partitioning methods infoMethods for storing different data on different nodesnonenonenone
Replication methods infoMethods for redundantly storing data on multiple nodesyes infobased on H2nonenone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistencynone
Foreign keys infoReferential integrityyesnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnoACID
Concurrency infoSupport for concurrent manipulation of datayes, multi-version concurrency control (MVCC)yes
Durability infoSupport for making data persistentyesyes infowith automatic compression on writesno 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.yesyes
User concepts infoAccess controlyes infobased on H2nono

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More resources
H2GISLevelDBSQL.JS
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