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DBMS > GreptimeDB vs. Kingbase vs. Oracle Coherence

System Properties Comparison GreptimeDB vs. Kingbase vs. Oracle Coherence

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Editorial information provided by DB-Engines
NameGreptimeDB  Xexclude from comparisonKingbase  Xexclude from comparisonOracle Coherence  Xexclude from comparison
DescriptionAn open source Time Series DBMS built for increased scalability, high performance and efficiencyAn enterprise-class RDBMS compatible with PostgreSQL and Oracle and widely used in China.Oracles in-memory data grid solution
Primary database modelTime Series DBMSRelational DBMSKey-value store
Secondary database modelsDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.12
Rank#351  Overall
#34  Time Series DBMS
Score0.50
Rank#257  Overall
#119  Relational DBMS
Score1.97
Rank#129  Overall
#22  Key-value stores
Websitegreptime.comwww.kingbase.com.cnwww.oracle.com/­java/­coherence
Technical documentationdocs.greptime.comdocs.oracle.com/­en/­middleware/­standalone/­coherence
DeveloperGreptime Inc.BeiJing KINGBASE Information technologies inc.Oracle
Initial release202219992007
Current releaseV8.0, August 202114.1, August 2023
License infoCommercial or Open SourceOpen Source infoApache Version 2.0commercialcommercial
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageRustC and JavaJava
Server operating systemsAndroid
Docker
FreeBSD
Linux
macOS
Windows
Linux
Windows
All OS with a Java VM
Data schemeschema-free, schema definition possibleyesschema-free
Typing infopredefined data types such as float or dateyesyesyes
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.noyesno
Secondary indexesyesyesno
SQL infoSupport of SQLyesStandard with numerous extensionsno
APIs and other access methodsgRPC
HTTP API
JDBC
ADO.NET
gokb
JDBC
kdbndp
ODBC
PDI
PDO
Pro*C
psycopg2
QT
JCache
JPA
RESTful HTTP API
Supported programming languagesC++
Erlang
Go
Java
JavaScript
.Net
C
C++
Go
Java
JavaScript (Node.js)
Perl
PHP
Python
.Net
C++
Java
Server-side scripts infoStored proceduresPythonuser defined functionsno
Triggersyesyes infoLive Events
Partitioning methods infoMethods for storing different data on different nodesShardinghorizontal partitioning (by range, list and hash) and vertical partitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyesyes, with selectable consistency level
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyEventual Consistency
Immediate Consistency
Foreign keys infoReferential integrityyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDconfigurable
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes infooptionally
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes
User concepts infoAccess controlSimple rights management via user accountsfine grained access rights according to SQL-standardauthentification to access the cache via certificates or http basic authentication
More information provided by the system vendor
GreptimeDBKingbaseOracle Coherence
Specific characteristicsGreptimeDB is a SQL & Python-enabled timeseries database system built from scratch...
» more
Competitive advantages- Inherits advantages of Rust, such as excellent performance, memory safe, resource...
» more
Typical application scenariosFor IoT industries, GreptimeDB can seamless integrate with message queues and other...
» more
Key customersGreptime's clients span multiple sectors including IoT, connected vehicles, and energy...
» more
Market metricsGreptimeDB has garnered global recognition by topping GitHub trends following its...
» more
Licensing and pricing modelsGreptimeDB: open source, distributed, cloud-native TSDB; supports Hybrid Time-series...
» more

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and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

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More resources
GreptimeDBKingbaseOracle Coherence
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