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DBMS > LMDB vs. OrientDB vs. Realm vs. SAP IQ

System Properties Comparison LMDB vs. OrientDB vs. Realm vs. SAP IQ

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Editorial information provided by DB-Engines
NameLMDB  Xexclude from comparisonOrientDB  Xexclude from comparisonRealm  Xexclude from comparisonSAP IQ infoformer name: Sybase IQ  Xexclude from comparison
DescriptionA high performant, light-weight, embedded key-value database libraryMulti-model DBMS (Document, Graph, Key/Value)A DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core DataColumnar RDBMS optimized for Big Data analytics
Primary database modelKey-value storeDocument store
Graph DBMS
Key-value store
Document storeRelational DBMS infocolumn-oriented
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.94
Rank#120  Overall
#20  Key-value stores
Score3.02
Rank#88  Overall
#16  Document stores
#6  Graph DBMS
#12  Key-value stores
Score7.18
Rank#52  Overall
#8  Document stores
Score2.56
Rank#106  Overall
#52  Relational DBMS
Websitewww.symas.com/­symas-embedded-database-lmdborientdb.orgrealm.iowww.sap.com/­products/­technology-platform/­sybase-iq-big-data-management.html
Technical documentationwww.lmdb.tech/­docwww.orientdb.com/­docs/­last/­index.htmlrealm.io/­docshelp.sap.com/­docs/­SAP_IQ
DeveloperSymasOrientDB LTD; CallidusCloud; SAPRealm, acquired by MongoDB in May 2019SAP, formerly Sybase
Initial release2011201020141994
Current release0.9.32, January 20243.2.29, March 202416.1 SPS04, April 2019
License infoCommercial or Open SourceOpen SourceOpen Source infoApache version 2Open Sourcecommercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCJava
Server operating systemsLinux
Unix
Windows
All OS with a Java JDK (>= JDK 6)Android
Backend: server-less
iOS
Windows
AIX
HP-UX
Linux
Solaris
Windows
Data schemeschema-freeschema-free infoSchema can be enforced for whole record ("schema-full") or for some fields only ("schema-hybrid")yesyes
Typing infopredefined data types such as float or dateyesyesyes
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 indexesnoyesyesyes
SQL infoSupport of SQLnoSQL-like query language, no joinsnoyes
APIs and other access methodsTinkerpop technology stack with Blueprints, Gremlin, Pipes
Java API
RESTful HTTP/JSON API
ADO.NET
JDBC
ODBC
RESTful 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
.Net
C
C#
C++
Clojure
Java
JavaScript
JavaScript (Node.js)
PHP
Python
Ruby
Scala
.Net
Java infowith Android only
Objective-C
React Native
Swift
C
C#
C++
Java
Perl
PHP
Python
Ruby
Server-side scripts infoStored proceduresnoJava, Javascriptno inforuns within the applications so server-side scripts are unnecessaryyes
TriggersnoHooksyes infoChange Listenersyes
Partitioning methods infoMethods for storing different data on different nodesnoneShardingnoneshared disk or shared nothing architectures with SAP IQ Multiplexer
Replication methods infoMethods for redundantly storing data on multiple nodesnoneMulti-source replicationnoneSAP/Sybase Replication Server
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono infocould be achieved with distributed queriesnoHadoop integration
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyes inforelationship in graphsnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes infoIn-Memory realmno
User concepts infoAccess controlnoAccess rights for users and roles; record level security configurableyesfine grained access rights according to SQL-standard

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More resources
LMDBOrientDBRealmSAP IQ infoformer name: Sybase IQ
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