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DBMS > BaseX vs. Ehcache vs. LMDB vs. OpenQM

System Properties Comparison BaseX vs. Ehcache vs. LMDB vs. OpenQM

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Editorial information provided by DB-Engines
NameBaseX  Xexclude from comparisonEhcache  Xexclude from comparisonLMDB  Xexclude from comparisonOpenQM infoalso called QM  Xexclude from comparison
DescriptionLight-weight Native XML DBMS with support for XQuery 3.0 and interactive GUI.A widely adopted Java cache with tiered storage optionsA high performant, light-weight, embedded key-value database libraryQpenQM is a high-performance, self-tuning, multi-value DBMS
Primary database modelNative XML DBMSKey-value storeKey-value storeMultivalue DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.84
Rank#135  Overall
#4  Native XML DBMS
Score4.64
Rank#68  Overall
#8  Key-value stores
Score2.09
Rank#121  Overall
#20  Key-value stores
Score0.34
Rank#284  Overall
#10  Multivalue DBMS
Websitebasex.orgwww.ehcache.orgwww.symas.com/­symas-embedded-database-lmdbwww.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-open-qm
Technical documentationdocs.basex.orgwww.ehcache.org/­documentationwww.lmdb.tech/­doc
DeveloperBaseX GmbHTerracotta Inc, owned by Software AGSymasRocket Software, originally Martin Phillips
Initial release2007200920111993
Current release11.0, June 20243.10.0, March 20220.9.32, January 20243.4-12
License infoCommercial or Open SourceOpen Source infoBSD licenseOpen Source infoApache Version 2; commercial licenses availableOpen SourceOpen Source infoGPLv2, extended commercial license available
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaJavaC
Server operating systemsLinux
OS X
Windows
All OS with a Java VMLinux
Unix
Windows
AIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
Data schemeschema-freeschema-freeschema-freeyes infowith some exceptions
Typing infopredefined data types such as float or dateno infoXQuery supports typesyes
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.nonoyes
Secondary indexesyesnonoyes
SQL infoSupport of SQLnononono
APIs and other access methodsJava API
RESTful HTTP API
RESTXQ
WebDAV
XML:DB
XQJ
JCache
Supported programming languagesActionscript
C
C#
Haskell
Java
JavaScript infoNode.js
Lisp
Perl
PHP
Python
Qt
Rebol
Ruby
Scala
Visual Basic
Java.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
.Net
Basic
C
Java
Objective C
PHP
Python
Server-side scripts infoStored proceduresyesnonoyes
Triggersyes infovia eventsyes infoCache Event Listenersnoyes
Partitioning methods infoMethods for storing different data on different nodesnoneSharding infoby using Terracotta Servernoneyes
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyes infoby using Terracotta Servernoneyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemTunable Consistency (Strong, Eventual, Weak)Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datamultiple readers, single writeryes infosupports JTA and can work as an XA resourceACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyes infousing a tiered cache-storage approachyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlUsers with fine-grained authorization concept on 4 levelsnonoAccess rights can be defined down to the item level

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More resources
BaseXEhcacheLMDBOpenQM infoalso called QM
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