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DBMS > Coveo vs. Machbase Neo vs. openGemini vs. Oracle Rdb

System Properties Comparison Coveo vs. Machbase Neo vs. openGemini vs. Oracle Rdb

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Editorial information provided by DB-Engines
NameCoveo  Xexclude from comparisonMachbase Neo infoFormer name was Infiniflux  Xexclude from comparisonopenGemini  Xexclude from comparisonOracle Rdb  Xexclude from comparison
DescriptionAI-powered hosted search, recommendation and personalization platform providing tools for both low-code and full-code developmentTimeSeries DBMS for AIoT and BigDataAn open source distributed Time Series DBMS with high concurrency, high performance, and high scalability
Primary database modelSearch engineTime Series DBMSTime Series DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.11
Rank#118  Overall
#11  Search engines
Score0.17
Rank#337  Overall
#30  Time Series DBMS
Score0.09
Rank#361  Overall
#37  Time Series DBMS
Score1.14
Rank#178  Overall
#80  Relational DBMS
Websitewww.coveo.commachbase.comwww.opengemini.org
github.com/­openGemini
www.oracle.com/­database/­technologies/­related/­rdb.html
Technical documentationdocs.coveo.commachbase.com/­dbmsdocs.opengemini.org/­guidewww.oracle.com/­database/­technologies/­related/­rdb-doc.html
DeveloperCoveoMachbaseHuawei and openGemini communityOracle, originally developed by Digital Equipment Corporation (DEC)
Initial release2012201320221984
Current releaseV8.0, August 20231.1, July 20237.4.1.1, 2021
License infoCommercial or Open Sourcecommercialcommercial infofree test version availableOpen Source infoApache Version 2.0commercial
Cloud-based only infoOnly available as a cloud serviceyesnonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCGo
Server operating systemshostedLinux
macOS
Windows
Linux
Windows
HP Open VMS
Data schemehybrid - fields need to be configured prior to indexing, but relationships can be exploited at query time without pre-configurationyesschema-freeFlexible Schema (defined schema, partial schema, schema free)
Typing infopredefined data types such as float or dateyesyesInteger, Float, Boolean, Stringyes
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 SQLnoSQL-like query languageSQL-like query languageyes
APIs and other access methodsRESTful HTTP APIgRPC
HTTP REST
JDBC
MQTT (Message Queue Telemetry Transport)
ODBC
HTTP REST
Supported programming languagesC#
Java
JavaScript
Python
C
C#
C++
Go
Java
JavaScript
PHP infovia ODBC
Python
R infovia ODBC
Scala
C
C++
Go
Java
JavaScript (Node.js)
Python
Rust
Server-side scripts infoStored proceduresnonono
Triggersyesnono
Partitioning methods infoMethods for storing different data on different nodesyesShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyesselectable replication factoryes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnonoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesnonoyes, on a single node
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesnoyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes infovolatile and lookup tableyesno
User concepts infoAccess controlgranular access controls, API key management, content filterssimple password-based access controlAdministrators and common users accounts

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More resources
CoveoMachbase Neo infoFormer name was InfinifluxopenGeminiOracle Rdb
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