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DBMS > Coveo vs. Datomic vs. gStore vs. Microsoft Azure Synapse Analytics vs. NSDb

System Properties Comparison Coveo vs. Datomic vs. gStore vs. Microsoft Azure Synapse Analytics vs. NSDb

Editorial information provided by DB-Engines
NameCoveo  Xexclude from comparisonDatomic  Xexclude from comparisongStore  Xexclude from comparisonMicrosoft Azure Synapse Analytics infopreviously named Azure SQL Data Warehouse  Xexclude from comparisonNSDb  Xexclude from comparison
DescriptionAI-powered hosted search, recommendation and personalization platform providing tools for both low-code and full-code developmentDatomic builds on immutable values, supports point-in-time queries and uses 3rd party systems for durabilityA native Graph DBMS to store and maintain very large RDF datasets.Elastic, large scale data warehouse service leveraging the broad eco-system of SQL ServerScalable, High-performance Time Series DBMS designed for Real-time Analytics on top of Kubernetes
Primary database modelSearch engineRelational DBMSGraph DBMS
RDF store
Relational DBMSTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.11
Rank#118  Overall
#11  Search engines
Score1.66
Rank#144  Overall
#66  Relational DBMS
Score0.14
Rank#342  Overall
#34  Graph DBMS
#16  RDF stores
Score19.93
Rank#31  Overall
#19  Relational DBMS
Score0.08
Rank#369  Overall
#40  Time Series DBMS
Websitewww.coveo.comwww.datomic.comen.gstore.cnazure.microsoft.com/­services/­synapse-analyticsnsdb.io
Technical documentationdocs.coveo.comdocs.datomic.comen.gstore.cn/­#/­enDocsdocs.microsoft.com/­azure/­synapse-analyticsnsdb.io/­Architecture
DeveloperCoveoCognitectMicrosoft
Initial release20122012201620162017
Current release1.0.7075, December 20231.2, November 2023
License infoCommercial or Open Sourcecommercialcommercial infolimited edition freeOpen Source infoBSDcommercialOpen Source infoApache Version 2.0
Cloud-based only infoOnly available as a cloud serviceyesnonoyesno
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJava, ClojureC++C++Java, Scala
Server operating systemshostedAll OS with a Java VMLinuxhostedLinux
macOS
Data schemehybrid - fields need to be configured prior to indexing, but relationships can be exploited at query time without pre-configurationyesschema-free and OWL/RDFS-schema supportyes
Typing infopredefined data types such as float or dateyesyesyesyesyes: int, bigint, decimal, string
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.nonononono
Secondary indexesyesyesyesall fields are automatically indexed
SQL infoSupport of SQLnononoyesSQL-like query language
APIs and other access methodsRESTful HTTP APIRESTful HTTP APIHTTP API
SPARQL 1.1
ADO.NET
JDBC
ODBC
gRPC
HTTP REST
WebSocket
Supported programming languagesC#
Java
JavaScript
Python
Clojure
Java
C++
Java
JavaScript (Node.js)
PHP
Python
C#
Java
PHP
Java
Scala
Server-side scripts infoStored proceduresnoyes infoTransaction FunctionsyesTransact SQLno
TriggersyesBy using transaction functionsno
Partitioning methods infoMethods for storing different data on different nodesyesnone infoBut extensive use of caching in the application peersSharding, horizontal partitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyesnone infoBut extensive use of caching in the application peersyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyEventual Consistency
Foreign keys infoReferential integrityyesnono infodocs.microsoft.com/­en-us/­azure/­synapse-analytics/­sql-data-warehouse/­sql-data-warehouse-table-constraintsno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesACIDyesACIDno
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesyes infousing external storage systems (e.g. Cassandra, DynamoDB, PostgreSQL, Couchbase and others)yesyesUsing Apache Lucene
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 controlgranular access controls, API key management, content filtersnoUsers, roles and permissions, Role-Based Access Control (RBAC) supportedyes

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More resources
CoveoDatomicgStoreMicrosoft Azure Synapse Analytics infopreviously named Azure SQL Data WarehouseNSDb
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