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DBMS > Datomic vs. ReductStore vs. Sequoiadb

System Properties Comparison Datomic vs. ReductStore vs. Sequoiadb

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Editorial information provided by DB-Engines
NameDatomic  Xexclude from comparisonReductStore  Xexclude from comparisonSequoiadb  Xexclude from comparison
DescriptionDatomic builds on immutable values, supports point-in-time queries and uses 3rd party systems for durabilityDesigned to manage unstructured time-series data efficiently, providing unique features such as storing time-stamped blobs with labels, customizable data retention policies, and a straightforward FIFO quota system.NewSQL database with distributed OLTP and SQL
Primary database modelRelational DBMSTime Series DBMSDocument store
Relational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.59
Rank#150  Overall
#69  Relational DBMS
Score0.00
Rank#383  Overall
#41  Time Series DBMS
Score0.45
Rank#261  Overall
#41  Document stores
#122  Relational DBMS
Websitewww.datomic.comgithub.com/­reductstore
www.reduct.store
www.sequoiadb.com
Technical documentationdocs.datomic.comwww.reduct.store/­docswww.sequoiadb.com/­en/­index.php?m=Files&a=index
DeveloperCognitectReductStore LLCSequoiadb Ltd.
Initial release201220232013
Current release1.0.6735, June 20231.9, March 2024
License infoCommercial or Open Sourcecommercial infolimited edition freeOpen Source infoBusiness Source License 1.1Open Source infoServer: AGPL; Client: Apache V2
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJava, ClojureC++, RustC++
Server operating systemsAll OS with a Java VMDocker
Linux
macOS
Windows
Linux
Data schemeyesschema-free
Typing infopredefined data types such as float or dateyesyes infooid, date, timestamp, binary, regex
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.nono
Secondary indexesyesyes
SQL infoSupport of SQLnoSQL-like query language
APIs and other access methodsRESTful HTTP APIHTTP APIproprietary protocol using JSON
Supported programming languagesClojure
Java
C++
JavaScript (Node.js)
Python
Rust
.Net
C++
Java
PHP
Python
Server-side scripts infoStored proceduresyes infoTransaction FunctionsJavaScript
TriggersBy using transaction functionsno
Partitioning methods infoMethods for storing different data on different nodesnone infoBut extensive use of caching in the application peersSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoBut extensive use of caching in the application peersSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency
Foreign keys infoReferential integritynono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDDocument is locked during a transaction
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyes infousing external storage systems (e.g. Cassandra, DynamoDB, PostgreSQL, Couchbase and others)yes
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 developmentno
User concepts infoAccess controlnosimple password-based access control

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More resources
DatomicReductStoreSequoiadb
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