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DBMS > LeanXcale vs. TerminusDB vs. XTDB

System Properties Comparison LeanXcale vs. TerminusDB vs. XTDB

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Editorial information provided by DB-Engines
NameLeanXcale  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonXTDB infoformerly named Crux  Xexclude from comparison
DescriptionA highly scalable full ACID SQL database with fast NoSQL data ingestion and GIS capabilitiesScalable Graph Database platform making enterprise data available by exploiting inferred entities and relationshipsA general purpose database with bitemporal SQL and Datalog and graph queries
Primary database modelKey-value store
Relational DBMS
Graph DBMSDocument store
Secondary database modelsDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.35
Rank#283  Overall
#41  Key-value stores
#128  Relational DBMS
Score0.22
Rank#323  Overall
#28  Graph DBMS
Score0.09
Rank#351  Overall
#47  Document stores
Websitewww.leanxcale.comterminusdb.comgithub.com/­xtdb/­xtdb
www.xtdb.com
Technical documentationterminusdb.github.io/­terminusdb/­#www.xtdb.com/­docs
DeveloperLeanXcaleDataChemist Ltd.Juxt Ltd.
Initial release201520182019
Current release11.0.0, January 20231.19, September 2021
License infoCommercial or Open SourcecommercialOpen Source infoGPL V3Open Source infoMIT License
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageProlog, RustClojure
Server operating systemsLinuxAll OS with a Java 8 (and higher) VM
Linux
Data schemeyesyesschema-free
Typing infopredefined data types such as float or dateyesyes, 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.nono
Secondary indexesyes
SQL infoSupport of SQLyes infothrough Apache DerbySQL-like query language (WOQL)limited SQL, making use of Apache Calcite
APIs and other access methodsJDBC
Kafka Connector
ODBC
proprietary key/value interface
Spark Connector
OWL
RESTful HTTP API
WOQL (Web Object Query Language)
HTTP REST
JDBC
Supported programming languagesC
Java
Scala
JavaScript
Python
Clojure
Java
Server-side scripts infoStored proceduresyesno
Triggersyesno
Partitioning methods infoMethods for storing different data on different nodesGraph Partitioningnone
Replication methods infoMethods for redundantly storing data on multiple nodesJournaling Streamsyes, each node contains all data
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integrityyesyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyes infoin-memory journalingyes, 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
User concepts infoAccess controlRole-based access control

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More resources
LeanXcaleTerminusDB infoformer name was DataChemistXTDB infoformerly named Crux
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