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DBMS > BaseX vs. LMDB vs. TempoIQ vs. TerminusDB vs. VelocityDB

System Properties Comparison BaseX vs. LMDB vs. TempoIQ vs. TerminusDB vs. VelocityDB

Editorial information provided by DB-Engines
NameBaseX  Xexclude from comparisonLMDB  Xexclude from comparisonTempoIQ infoformerly TempoDB  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparison
TempoIQ seems to be decommissioned. It will be removed from the DB-Engines ranking.
DescriptionLight-weight Native XML DBMS with support for XQuery 3.0 and interactive GUI.A high performant, light-weight, embedded key-value database libraryScalable analytics DBMS for sensor data, provided as a service (SaaS)Scalable Graph Database platform making enterprise data available by exploiting inferred entities and relationshipsA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelNative XML DBMSKey-value storeTime Series DBMSGraph DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.73
Rank#142  Overall
#4  Native XML DBMS
Score1.99
Rank#125  Overall
#21  Key-value stores
Score0.17
Rank#325  Overall
#29  Graph DBMS
Score0.05
Rank#358  Overall
#36  Graph DBMS
#16  Object oriented DBMS
Websitebasex.orgwww.symas.com/­symas-embedded-database-lmdbtempoiq.com (offline)terminusdb.comvelocitydb.com
Technical documentationdocs.basex.orgwww.lmdb.tech/­docterminusdb.github.io/­terminusdb/­#velocitydb.com/­UserGuide
DeveloperBaseX GmbHSymasTempoIQDataChemist Ltd.VelocityDB Inc
Initial release20072011201220182011
Current release10.7, August 20230.9.32, January 202411.0.0, January 20237.x
License infoCommercial or Open SourceOpen Source infoBSD licenseOpen SourcecommercialOpen Source infoGPL V3commercial
Cloud-based only infoOnly available as a cloud servicenonoyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaCProlog, RustC#
Server operating systemsLinux
OS X
Windows
Linux
Unix
Windows
LinuxAny that supports .NET
Data schemeschema-freeschema-freeschema-freeyesyes
Typing infopredefined data types such as float or dateno infoXQuery supports typesyesyesyes
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 indexesyesnoyes
SQL infoSupport of SQLnononoSQL-like query language (WOQL)no
APIs and other access methodsJava API
RESTful HTTP API
RESTXQ
WebDAV
XML:DB
XQJ
HTTP APIOWL
RESTful HTTP API
WOQL (Web Object Query Language)
.Net
Supported programming languagesActionscript
C
C#
Haskell
Java
JavaScript infoNode.js
Lisp
Perl
PHP
Python
Qt
Rebol
Ruby
Scala
Visual Basic
.Net
C
C++
Clojure
Go
Haskell
Java
JavaScript (Node.js)
Lisp
Lua
MatLab
Nim
Objective C
OCaml
Perl
PHP
Python
R
Ruby
Rust
Swift
Tcl
C#
Java
JavaScript infoNode.js
Python
Ruby
JavaScript
Python
.Net
Server-side scripts infoStored proceduresyesnonoyesno
Triggersyes infovia eventsnoyes infoRealtime AlertsyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesnonenoneGraph PartitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnonenoneJournaling Streams
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynononoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datamultiple readers, single writerACIDnoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesyesyesyes infoin-memory journalingyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyes
User concepts infoAccess controlUsers with fine-grained authorization concept on 4 levelsnosimple authentication-based access controlRole-based access controlBased on Windows Authentication

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More resources
BaseXLMDBTempoIQ infoformerly TempoDBTerminusDB infoformer name was DataChemistVelocityDB
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