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DBMS > Heroic vs. JSqlDb vs. LevelDB vs. searchxml vs. TempoIQ

System Properties Comparison Heroic vs. JSqlDb vs. LevelDB vs. searchxml vs. TempoIQ

Editorial information provided by DB-Engines
NameHeroic  Xexclude from comparisonJSqlDb  Xexclude from comparisonLevelDB  Xexclude from comparisonsearchxml  Xexclude from comparisonTempoIQ infoformerly TempoDB  Xexclude from comparison
JSqlDB seems to be discontinued. Therefore it is excluded from the DB-Engines ranking.TempoIQ seems to be decommissioned. It will be removed from the DB-Engines ranking.
DescriptionTime Series DBMS built at Spotify based on Cassandra or Google Cloud Bigtable, and ElasticSearchJavaScript Query Language Database, stores JavaScript objects and primitivesEmbeddable fast key-value storage library that provides an ordered mapping from string keys to string valuesDBMS for structured and unstructured content wrapped with an application serverScalable analytics DBMS for sensor data, provided as a service (SaaS)
Primary database modelTime Series DBMSDocument store
Object oriented DBMS
Key-value storeNative XML DBMS
Search engine
Time Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.51
Rank#255  Overall
#21  Time Series DBMS
Score2.35
Rank#111  Overall
#19  Key-value stores
Score0.00
Rank#383  Overall
#7  Native XML DBMS
#25  Search engines
Websitegithub.com/­spotify/­heroicjsqldb.org (offline)github.com/­google/­leveldbwww.searchxml.net/­category/­productstempoiq.com (offline)
Technical documentationspotify.github.io/­heroicgithub.com/­google/­leveldb/­blob/­main/­doc/­index.mdwww.searchxml.net/­support/­handouts
DeveloperSpotifyKonrad von BackstromGoogleinformationpartners gmbhTempoIQ
Initial release20142018201120152012
Current release0.8, December 20181.23, February 20211.0
License infoCommercial or Open SourceOpen Source infoApache 2.0Open SourceOpen Source infoBSDcommercialcommercial
Cloud-based only infoOnly available as a cloud servicenonononoyes
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaC++C++
Server operating systemsLinux
macOS
Windows
Illumos
Linux
OS X
Windows
Windows
Data schemeschema-freeschema-freeschema-freeschema-freeschema-free
Typing infopredefined data types such as float or dateyesnonoyesyes
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.nononoyesno
Secondary indexesyes infovia Elasticsearchnonoyes
SQL infoSupport of SQLnonononono
APIs and other access methodsHQL (Heroic Query Language, a JSON-based language)
HTTP API
RESTful HTTP API
WebDAV
XQuery
XSLT
HTTP API
Supported programming languagesJavaScriptC++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
C++ infomost other programming languages supported via APIsC#
Java
JavaScript infoNode.js
Python
Ruby
Server-side scripts infoStored proceduresnofunctions in JavaScriptnoyes infoon the application serverno
Triggersnonononoyes infoRealtime Alerts
Partitioning methods infoMethods for storing different data on different nodesShardingnonenonenone
Replication methods infoMethods for redundantly storing data on multiple nodesyesnonenoneyes infosychronisation to multiple collections
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonomultiple readers, single writerno
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyes infousing RocksDByes infowith automatic compression on writesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonono
User concepts infoAccess controlnoDomain, group and role-based access control at the document level and for application servicessimple authentication-based access control

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More resources
HeroicJSqlDbLevelDBsearchxmlTempoIQ infoformerly TempoDB
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