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DBMS > AgensGraph vs. CockroachDB vs. Datomic vs. OpenTSDB

System Properties Comparison AgensGraph vs. CockroachDB vs. Datomic vs. OpenTSDB

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Editorial information provided by DB-Engines
NameAgensGraph  Xexclude from comparisonCockroachDB  Xexclude from comparisonDatomic  Xexclude from comparisonOpenTSDB  Xexclude from comparison
DescriptionMulti-model database supporting relational and graph data models and built upon PostgreSQLCockroachDB is a distributed database architected for modern cloud applications. It is wire compatible with PostgreSQL and backed by a Key-Value Store, which is either RocksDB or a purpose-built derivative, called Pebble.Datomic builds on immutable values, supports point-in-time queries and uses 3rd party systems for durabilityScalable Time Series DBMS based on HBase
Primary database modelGraph DBMS
Relational DBMS
Relational DBMSRelational DBMSTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.23
Rank#315  Overall
#26  Graph DBMS
#140  Relational DBMS
Score5.73
Rank#58  Overall
#34  Relational DBMS
Score1.66
Rank#144  Overall
#66  Relational DBMS
Score1.68
Rank#142  Overall
#12  Time Series DBMS
Websitebitnine.net/­agensgraphwww.cockroachlabs.comwww.datomic.comopentsdb.net
Technical documentationbitnine.net/­documentationwww.cockroachlabs.com/­docsdocs.datomic.comopentsdb.net/­docs/­build/­html/­index.html
DeveloperBitnine Global Inc.Cockroach LabsCognitectcurrently maintained by Yahoo and other contributors
Initial release2016201520122011
Current release2.1, December 201824.1.0, May 20241.0.6735, June 2023
License infoCommercial or Open SourceOpen Source infoApache License 2.0Open Source infoApache 2.0, commercial license availablecommercial infolimited edition freeOpen Source infoLGPL
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 languageCGoJava, ClojureJava
Server operating systemsLinux
OS X
Windows
Linux
macOS
Windows
All OS with a Java VMLinux
Windows
Data schemedepending on used data modeldynamic schemayesschema-free
Typing infopredefined data types such as float or dateyesyesyesnumeric data for metrics, strings for tags
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 indexesyesyesyesno
SQL infoSupport of SQLyesyes, wire compatible with PostgreSQLnono
APIs and other access methodsCypher Query Language
JDBC
JDBCRESTful HTTP APIHTTP API
Telnet API
Supported programming languagesC
Java
JavaScript
Python
C#
C++
Clojure
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
Rust
Clojure
Java
Erlang
Go
Java
Python
R
Ruby
Server-side scripts infoStored proceduresyesnoyes infoTransaction Functionsno
TriggersnonoBy using transaction functionsno
Partitioning methods infoMethods for storing different data on different nodesno, but can be realized using table inheritancehorizontal partitioning (by key range) infoall tables are translated to an ordered KV store and then broken down into 64MB ranges, which are then used as replicas in RAFTnone infoBut extensive use of caching in the application peersSharding infobased on HBase
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationMulti-source replication using RAFTnone infoBut extensive use of caching in the application peersselectable replication factor infobased on HBase
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate Consistency infobased on HBase
Foreign keys infoReferential integrityyesyesnono
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 persistentyesyesyes 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.nonoyes inforecommended only for testing and developmentno
User concepts infoAccess controlfine grained access rights according to SQL-standardRole-based access controlnono

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More resources
AgensGraphCockroachDBDatomicOpenTSDB
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