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DBMS > Realm vs. RocksDB vs. SAP SQL Anywhere vs. Weaviate

System Properties Comparison Realm vs. RocksDB vs. SAP SQL Anywhere vs. Weaviate

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Editorial information provided by DB-Engines
NameRealm  Xexclude from comparisonRocksDB  Xexclude from comparisonSAP SQL Anywhere infoformerly called Adaptive Server Anywhere  Xexclude from comparisonWeaviate  Xexclude from comparison
DescriptionA DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core DataEmbeddable persistent key-value store optimized for fast storage (flash and RAM)RDBMS database and synchronization technologies for server, desktop, remote office, and mobile environmentsA cloud-native, realtime vector search engine integrating scalable machine learning models
Primary database modelDocument storeKey-value storeRelational DBMSSearch engine
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score9.89
Rank#49  Overall
#8  Document stores
Score3.91
Rank#89  Overall
#15  Key-value stores
Score5.61
Rank#72  Overall
#40  Relational DBMS
Score0.17
Rank#295  Overall
#19  Search engines
Websiterealm.iorocksdb.orgwww.sap.com/­products/­sql-anywhere.htmlgithub.com/­semi-technologies/­weaviate
weaviate.io
Technical documentationrealm.io/­docsgithub.com/­facebook/­rocksdb/­wikihelp.sap.com/­sql-anywhereweaviate.io/­developers/­weaviate/­current
DeveloperRealm, acquired by MongoDB in May 2019Facebook, Inc.SAP infoformerly SybaseSeMI Technologies B.V.
Initial release2014201319922017
Current release7.1.1, April 202217, July 20151.0.3, January 2021
License infoCommercial or Open SourceOpen SourceOpen Source infoBSDcommercialOpen Source infocommercial license available with Weaviate Enterprise
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++Go
Server operating systemsAndroid
Backend: server-less
iOS
Windows
AIX
HP-UX
Linux
OS X
Solaris
Windows
Data schemeyesschema-freeyesyes, maps to GraphQL interface
Typing infopredefined data types such as float or dateyesnoyesyes infostring, int, float, geo point, date, cross reference, fuzzy references
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.nonoyesno
Secondary indexesyesnoyesyes infoall data objects are indexed in a semantic vector space (the Contextionary), all primitive fields are indexed
SQL infoSupport of SQLnonoyesGraphQL is used as query language
APIs and other access methodsC++ API
Java API
ADO.NET
HTTP API
JDBC
ODBC
GraphQL query language
RESTful HTTP/JSON API
Supported programming languages.Net
Java infowith Android only
Objective-C
React Native
Swift
C++
Java
C
C#
C++
Delphi
Java
JavaScript (Node.js)
Perl
PHP
Python
Ruby
Server-side scripts infoStored proceduresno inforuns within the applications so server-side scripts are unnecessarynoyes, in C/C++, Java, .Net or Perlno
Triggersyes infoChange Listenersnoyesno
Partitioning methods infoMethods for storing different data on different nodesnonenonenoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnonenoneSource-replica replication infoDatabase mirroringyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyEventual Consistency
Foreign keys infoReferential integritynonoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDyesACIDno
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.yes infoIn-Memory realmyesyesno
User concepts infoAccess controlyesnofine grained access rights according to SQL-standardOpenID Connect Discovery
More information provided by the system vendor
RealmRocksDBSAP SQL Anywhere infoformerly called Adaptive Server AnywhereWeaviate
Specific characteristicsNow a part of MongoDB Data Platform , Realm Database is the fast, easy to use, and...
» more
Competitive advantagesRealm ensures offline-first functionality, meaning apps run smoothly and deliver...
» more
Typical application scenariosMobile Consumer Apps First-Line Worker Apps
» more
As a stand-alone vector search engine, or use one of the many modules (transformers,...
» more
Key customersCathay Pacific Royal Carribbean Cruise Lines Open Source Database powers apps built...
» more
A ll companies that have data. ​
» more
Market metricsUsed by 100,000+ developers 2 bn installs Currently used in 40k+ applications in...
» more
Licensing and pricing modelsRealm database is licensed under the Apache License v2.0.
» more
Weaviate is open-source, and free to use. We also offer Fully managed Weaviate on...
» more

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and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

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More resources
RealmRocksDBSAP SQL Anywhere infoformerly called Adaptive Server AnywhereWeaviate
DB-Engines blog posts

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Recent citations in the news

On Point: Q&A with Lewis Shepherd | SIGNAL Magazine
1 June 2021, Signal Magazine

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Did Rockset Just Solve Real-Time Analytics?
25 August 2021, Datanami

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SAP SQL Anywhere
21 March 2022, TechTarget

SAP gives SQL Anywhere a new IoT injection
16 July 2015, Computerworld

Top Data Management Platforms & Systems 2022 | ESF
22 July 2021, Enterprise Storage Forum

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15 February 2022, CRN Australia

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SeMI Technologies’ search engine opens up new ways to query your data
22 February 2022, TechCrunch

Database technology evolves to combine machine learning and data storage
7 March 2022, VentureBeat

The History of the Weaviate Vector Search Engine
9 May 2020, hackernoon.com

Getting Started with the Weaviate Vector Search Engine
18 May 2020, hackernoon.com

Weaviate Is A Search Engine For Vector Embeddings
11 May 2020, hackernoon.com

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