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DBMS > Lovefield vs. SpaceTime vs. TerarkDB vs. XTDB

System Properties Comparison Lovefield vs. SpaceTime vs. TerarkDB vs. XTDB

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Editorial information provided by DB-Engines
NameLovefield  Xexclude from comparisonSpaceTime  Xexclude from comparisonTerarkDB  Xexclude from comparisonXTDB infoformerly named Crux  Xexclude from comparison
DescriptionEmbeddable relational database for web apps written in pure JavaScriptSpaceTime is a spatio-temporal DBMS with a focus on performance.A key-value store forked from RocksDB with advanced compression algorithms. It can be used standalone or as a storage engine for MySQL and MongoDBA general purpose database with bitemporal SQL and Datalog and graph queries
Primary database modelRelational DBMSSpatial DBMSKey-value storeDocument store
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.33
Rank#286  Overall
#131  Relational DBMS
Score0.03
Rank#392  Overall
#8  Spatial DBMS
Score0.08
Rank#367  Overall
#56  Key-value stores
Score0.18
Rank#332  Overall
#46  Document stores
Websitegoogle.github.io/­lovefieldwww.mireo.com/­spacetimegithub.com/­bytedance/­terarkdbgithub.com/­xtdb/­xtdb
www.xtdb.com
Technical documentationgithub.com/­google/­lovefield/­blob/­master/­docs/­spec_index.mdbytedance.larkoffice.com/­docs/­doccnZmYFqHBm06BbvYgjsHHcKcwww.xtdb.com/­docs
DeveloperGoogleMireoByteDance, originally TerarkJuxt Ltd.
Initial release2014202020162019
Current release2.1.12, February 20171.19, September 2021
License infoCommercial or Open SourceOpen Source infoApache 2.0commercialcommercial inforestricted open source version availableOpen Source infoMIT License
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaScriptC++C++Clojure
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js) infotested with Chrome, Firefox, IE, SafariLinuxAll OS with a Java 8 (and higher) VM
Linux
Data schemeyesyesschema-freeschema-free
Typing infopredefined data types such as float or dateyesyesnoyes, extensible-data-notation format
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 indexesyesnonoyes
SQL infoSupport of SQLSQL-like query language infovia JavaScript builder patternA subset of ANSI SQL is implementednolimited SQL, making use of Apache Calcite
APIs and other access methodsRESTful HTTP APIC++ API
Java API
HTTP REST
JDBC
Supported programming languagesJavaScriptC#
C++
Python
C++
Java
Clojure
Java
Server-side scripts infoStored proceduresnononono
TriggersUsing read-only observersnonono
Partitioning methods infoMethods for storing different data on different nodesnoneFixed-grid hypercubesnonenone
Replication methods infoMethods for redundantly storing data on multiple nodesnoneReal-time block device replication (DRBD)noneyes, each node contains all data
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integrityyesnonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnonoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyes, by using IndexedDB or the cloud service Firebase Realtime Databaseyesyesyes, flexibel persistency by using storage technologies like Apache Kafka, RocksDB or LMDB
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes infousing MemoryDBnoyes
User concepts infoAccess controlnoyesno

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More resources
LovefieldSpaceTimeTerarkDBXTDB infoformerly named Crux
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