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DBMS > Datomic vs. Google Search Appliance

System Properties Comparison Datomic vs. Google Search Appliance

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Our visitors often compare Datomic and Google Search Appliance with Elasticsearch, Prometheus and Google Cloud Datastore.

Editorial information provided by DB-Engines
NameDatomic  Xexclude from comparisonGoogle Search Appliance  Xexclude from comparison
DescriptionDatomic builds on immutable values, supports point-in-time queries and uses 3rd party systems for durabilityThe Google Search Appliance consists of hardware and software for indexing documents in local networks.
Primary database modelRelational DBMSSearch engine
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.89
Rank#106  Overall
#53  Relational DBMS
Score2.93
Rank#84  Overall
#9  Search engines
Websitewww.datomic.comenterprise.google.com/­search/­products/­gsa.html
Technical documentationdocs.datomic.comsupport.google.com/­gsa
DeveloperCognitectGoogle
Initial release20122002
Current release0.9.5951, July 2019
License infoCommercial or Open Sourcecommercial infolimited edition freecommercial
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJava, Clojure
Server operating systemsAll OS with a Java VM
Data schemeyes
Typing infopredefined data types such as float or dateyes
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 indexesyes
SQL infoSupport of SQLnono
APIs and other access methodsRESTful HTTP APIAdministrative API
Browser interface
HTTP API
Supported programming languagesClojure
Java
Server-side scripts infoStored proceduresyes infoTransaction Functions
TriggersBy using transaction functions
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 peersMaster-slave replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integritynono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACID
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 controlnoUser authentication via various security protocols

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More resources
DatomicGoogle Search Appliance
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