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DBMS > Datomic vs. LevelDB vs. OrigoDB vs. Realm vs. SAP Advantage Database Server

System Properties Comparison Datomic vs. LevelDB vs. OrigoDB vs. Realm vs. SAP Advantage Database Server

Editorial information provided by DB-Engines
NameDatomic  Xexclude from comparisonLevelDB  Xexclude from comparisonOrigoDB  Xexclude from comparisonRealm  Xexclude from comparisonSAP Advantage Database Server infoformer name: Sybase ADS  Xexclude from comparison
SAP Advantage Database Server seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
DescriptionDatomic builds on immutable values, supports point-in-time queries and uses 3rd party systems for durabilityEmbeddable fast key-value storage library that provides an ordered mapping from string keys to string valuesA fully ACID in-memory object graph databaseA DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core DataLow-cost RDBMS with access to ISAM and FoxPro data structures
Primary database modelRelational DBMSKey-value storeDocument store
Object oriented DBMS
Document storeRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.59
Rank#150  Overall
#69  Relational DBMS
Score2.35
Rank#111  Overall
#19  Key-value stores
Score0.00
Rank#383  Overall
#53  Document stores
#20  Object oriented DBMS
Score7.60
Rank#52  Overall
#9  Document stores
Websitewww.datomic.comgithub.com/­google/­leveldborigodb.comrealm.iowww.sap.com/products/advantage-database-server.html
Technical documentationdocs.datomic.comgithub.com/­google/­leveldb/­blob/­main/­doc/­index.mdorigodb.com/­docsrealm.io/­docs
DeveloperCognitectGoogleRobert Friberg et alRealm, acquired by MongoDB in May 2019Sybase, SAP
Initial release201220112009 infounder the name LiveDB20141993
Current release1.0.6735, June 20231.23, February 2021
License infoCommercial or Open Sourcecommercial infolimited edition freeOpen Source infoBSDOpen SourceOpen Sourcecommercial
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJava, ClojureC++C#
Server operating systemsAll OS with a Java VMIllumos
Linux
OS X
Windows
Linux
Windows
Android
Backend: server-less
iOS
Windows
Linux
Windows
Data schemeyesschema-freeyesyesyes
Typing infopredefined data types such as float or dateyesnoUser defined using .NET types and collectionsyesyes
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.nonono infocan be achieved using .NETnono
Secondary indexesyesnoyesyesyes
SQL infoSupport of SQLnonononoyes
APIs and other access methodsRESTful HTTP API.NET Client API
HTTP API
LINQ
.NET Client API
ADO.NET
JDBC
ODBC
OLE DB
Supported programming languagesClojure
Java
C++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
.Net.Net
Java infowith Android only
Objective-C
React Native
Swift
Delphi
Perl
PHP
Server-side scripts infoStored proceduresyes infoTransaction Functionsnoyesno inforuns within the applications so server-side scripts are unnecessaryyes
TriggersBy using transaction functionsnoyes infoDomain Eventsyes infoChange Listenersyes
Partitioning methods infoMethods for storing different data on different nodesnone infoBut extensive use of caching in the application peersnonehorizontal partitioning infoclient side managed; servers are not synchronizednonenone
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoBut extensive use of caching in the application peersnoneSource-replica replicationnoneMulti-source replication infoCONFLICT Trigger to resolve replication conflicts
Source-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonodepending on modelnoyes
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 persistentyes infousing external storage systems (e.g. Cassandra, DynamoDB, PostgreSQL, Couchbase and others)yes infowith automatic compression on writesyes infoWrite ahead logyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes inforecommended only for testing and developmentyesyes infoIn-Memory realmno infocaching of (temporary) tables can be configured
User concepts infoAccess controlnonoRole based authorizationyesfine grained access rights according to SQL-standard

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More resources
DatomicLevelDBOrigoDBRealmSAP Advantage Database Server infoformer name: Sybase ADS
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