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DBMS > LMDB vs. Microsoft Azure AI Search vs. OrientDB vs. RDFox vs. Snowflake

System Properties Comparison LMDB vs. Microsoft Azure AI Search vs. OrientDB vs. RDFox vs. Snowflake

Editorial information provided by DB-Engines
NameLMDB  Xexclude from comparisonMicrosoft Azure AI Search  Xexclude from comparisonOrientDB  Xexclude from comparisonRDFox  Xexclude from comparisonSnowflake  Xexclude from comparison
DescriptionA high performant, light-weight, embedded key-value database librarySearch-as-a-service for web and mobile app developmentMulti-model DBMS (Document, Graph, Key/Value)High performance knowledge graph and semantic reasoning engineCloud-based data warehousing service for structured and semi-structured data
Primary database modelKey-value storeSearch engineDocument store
Graph DBMS
Key-value store
Graph DBMS
RDF store
Relational DBMS
Secondary database modelsVector DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.99
Rank#125  Overall
#21  Key-value stores
Score5.59
Rank#63  Overall
#7  Search engines
Score3.19
Rank#93  Overall
#16  Document stores
#7  Graph DBMS
#14  Key-value stores
Score0.23
Rank#308  Overall
#25  Graph DBMS
#14  RDF stores
Score121.33
Rank#9  Overall
#6  Relational DBMS
Websitewww.symas.com/­symas-embedded-database-lmdbazure.microsoft.com/­en-us/­services/­searchorientdb.orgwww.oxfordsemantic.techwww.snowflake.com
Technical documentationwww.lmdb.tech/­doclearn.microsoft.com/­en-us/­azure/­searchwww.orientdb.com/­docs/­last/­index.htmldocs.oxfordsemantic.techdocs.snowflake.net/­manuals/­index.html
DeveloperSymasMicrosoftOrientDB LTD; CallidusCloud; SAPOxford Semantic TechnologiesSnowflake Computing Inc.
Initial release20112015201020172014
Current release0.9.32, January 2024V13.2.29, March 20246.0, Septermber 2022
License infoCommercial or Open SourceOpen SourcecommercialOpen Source infoApache version 2commercialcommercial
Cloud-based only infoOnly available as a cloud servicenoyesnonoyes
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageCJavaC++
Server operating systemsLinux
Unix
Windows
hostedAll OS with a Java JDK (>= JDK 6)Linux
macOS
Windows
hosted
Data schemeschema-freeyesschema-free infoSchema can be enforced for whole record ("schema-full") or for some fields only ("schema-hybrid")yes infoRDF schemasyes infosupport of semi-structured data formats (JSON, XML, Avro)
Typing infopredefined data types such as float or dateyesyesyesyes
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.nononoyes
Secondary indexesnoyesyes
SQL infoSupport of SQLnonoSQL-like query language, no joinsnoyes
APIs and other access methodsRESTful HTTP APITinkerpop technology stack with Blueprints, Gremlin, Pipes
Java API
RESTful HTTP/JSON API
RESTful HTTP API
SPARQL 1.1
CLI Client
JDBC
ODBC
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#
Java
JavaScript
Python
.Net
C
C#
C++
Clojure
Java
JavaScript
JavaScript (Node.js)
PHP
Python
Ruby
Scala
C
Java
JavaScript (Node.js)
Python
Server-side scripts infoStored proceduresnonoJava, Javascriptuser defined functions
TriggersnonoHooksno infosimilar concept for controling cloud resources
Partitioning methods infoMethods for storing different data on different nodesnoneSharding infoImplicit feature of the cloud serviceShardingyes
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyes infoImplicit feature of the cloud serviceMulti-source replicationreplication via a shared file systemyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono infocould be achieved with distributed queriesno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency in stand-alone mode, Eventual Consistency in replicated setupsImmediate Consistency
Foreign keys infoReferential integritynonoyes inforelationship in graphsyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnoACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyesno
User concepts infoAccess controlnoyes infousing Azure authenticationAccess rights for users and roles; record level security configurableRoles, resources, and access typesUsers with fine-grained authorization concept, user roles and pluggable authentication

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LMDBMicrosoft Azure AI SearchOrientDBRDFoxSnowflake
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