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DBMS > Datomic vs. Galaxybase vs. Lovefield vs. OpenMLDB

System Properties Comparison Datomic vs. Galaxybase vs. Lovefield vs. OpenMLDB

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Editorial information provided by DB-Engines
NameDatomic  Xexclude from comparisonGalaxybase  Xexclude from comparisonLovefield  Xexclude from comparisonOpenMLDB  Xexclude from comparison
DescriptionDatomic builds on immutable values, supports point-in-time queries and uses 3rd party systems for durabilityScalable, ACID-compliant native distributed parallel graph platformEmbeddable relational database for web apps written in pure JavaScriptAn open-source machine learning database that provides a feature platform for training and inference
Primary database modelRelational DBMSGraph DBMSRelational DBMSTime Series DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.66
Rank#144  Overall
#66  Relational DBMS
Score0.07
Rank#377  Overall
#40  Graph DBMS
Score0.33
Rank#286  Overall
#131  Relational DBMS
Score0.10
Rank#359  Overall
#36  Time Series DBMS
Websitewww.datomic.comgalaxybase.comgoogle.github.io/­lovefieldopenmldb.ai
Technical documentationdocs.datomic.comgithub.com/­google/­lovefield/­blob/­master/­docs/­spec_index.mdopenmldb.ai/­docs/­zh/­main
DeveloperCognitectChuanglin(Createlink) Technology Co., Ltd 浙江创邻科技有限公司Google4 Paradigm Inc.
Initial release2012201720142020
Current release1.0.7075, December 2023Nov 20, November 20212.1.12, February 20172024-2 February 2024
License infoCommercial or Open Sourcecommercial infolimited edition freecommercialOpen Source infoApache 2.0Open Source
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJava, ClojureC and JavaJavaScriptC++, Java, Scala
Server operating systemsAll OS with a Java VMLinuxserver-less, requires a JavaScript environment (browser, Node.js) infotested with Chrome, Firefox, IE, SafariLinux
Data schemeyesStrong typed schemayesFixed schema
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.nononono
Secondary indexesyesyesyesyes
SQL infoSupport of SQLnonoSQL-like query language infovia JavaScript builder patternyes
APIs and other access methodsRESTful HTTP APIBrowser interface
console (shell)
Graph API (Gremlin)
OpenCypher
Proprietary native API
JDBC
SQLAlchemy
Supported programming languagesClojure
Java
Go
Java
Python
JavaScriptC++
Go
Java
Python
Scala
Server-side scripts infoStored proceduresyes infoTransaction Functionsuser defined procedures and functionsnono
TriggersBy using transaction functionsUsing read-only observersno
Partitioning methods infoMethods for storing different data on different nodesnone infoBut extensive use of caching in the application peersShardingnonehorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoBut extensive use of caching in the application peersnoneSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyes infoRelationships in graphsyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACIDno
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)yesyes, by using IndexedDB or the cloud service Firebase Realtime Databaseyes
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 infousing MemoryDByes
User concepts infoAccess controlnoRole-based access controlnofine grained access rights according to SQL-standard

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More resources
DatomicGalaxybaseLovefieldOpenMLDB
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