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DBMS > LMDB vs. OpenMLDB vs. Oracle Coherence vs. Yanza

System Properties Comparison LMDB vs. OpenMLDB vs. Oracle Coherence vs. Yanza

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Editorial information provided by DB-Engines
NameLMDB  Xexclude from comparisonOpenMLDB  Xexclude from comparisonOracle Coherence  Xexclude from comparisonYanza  Xexclude from comparison
Yanza seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
DescriptionA high performant, light-weight, embedded key-value database libraryAn open-source machine learning database that provides a feature platform for training and inferenceOracles in-memory data grid solutionTime Series DBMS for IoT Applications
Primary database modelKey-value storeTime Series DBMSKey-value storeTime Series DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.99
Rank#125  Overall
#21  Key-value stores
Score0.02
Rank#367  Overall
#37  Time Series DBMS
Score1.92
Rank#130  Overall
#22  Key-value stores
Websitewww.symas.com/­symas-embedded-database-lmdbopenmldb.aiwww.oracle.com/­java/­coherenceyanza.com
Technical documentationwww.lmdb.tech/­docopenmldb.ai/­docs/­zh/­maindocs.oracle.com/­en/­middleware/­standalone/­coherence
DeveloperSymas4 Paradigm Inc.OracleYanza
Initial release2011202020072015
Current release0.9.32, January 20242024-2 February 202414.1, August 2023
License infoCommercial or Open SourceOpen SourceOpen Sourcecommercialcommercial infofree version available
Cloud-based only infoOnly available as a cloud servicenononono infobut mainly used as a service provided by Yanza
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageCC++, Java, ScalaJava
Server operating systemsLinux
Unix
Windows
LinuxAll OS with a Java VMWindows
Data schemeschema-freeFixed schemaschema-freeschema-free
Typing infopredefined data types such as float or dateyesyesno
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 indexesnoyesnono
SQL infoSupport of SQLnoyesnono
APIs and other access methodsJDBC
SQLAlchemy
JCache
JPA
RESTful HTTP API
HTTP API
Supported programming languages.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++
Go
Java
Python
Scala
.Net
C++
Java
any language that supports HTTP calls
Server-side scripts infoStored proceduresnononono
Triggersnonoyes infoLive Eventsyes infoTimer and event based
Partitioning methods infoMethods for storing different data on different nodesnonehorizontal partitioningShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesnoneSource-replica replicationyes, with selectable consistency levelnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyEventual Consistency
Immediate Consistency
Immediate Consistency
Foreign keys infoReferential integritynononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnoconfigurableno
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyes infooptionallyyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyes
User concepts infoAccess controlnofine grained access rights according to SQL-standardauthentification to access the cache via certificates or http basic authenticationno

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More resources
LMDBOpenMLDBOracle CoherenceYanza
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