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DBMS > chDB vs. OpenTSDB vs. Oracle Coherence

System Properties Comparison chDB vs. OpenTSDB vs. Oracle Coherence

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Editorial information provided by DB-Engines
NamechDB  Xexclude from comparisonOpenTSDB  Xexclude from comparisonOracle Coherence  Xexclude from comparison
DescriptionAn embedded SQL OLAP Engine powered by ClickHouseScalable Time Series DBMS based on HBaseOracles in-memory data grid solution
Primary database modelRelational DBMSTime Series DBMSKey-value store
Secondary database modelsTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.00
Rank#383  Overall
#158  Relational DBMS
Score1.68
Rank#146  Overall
#12  Time Series DBMS
Score1.92
Rank#130  Overall
#22  Key-value stores
Websitegithub.com/­chdb-io/­chdbopentsdb.netwww.oracle.com/­java/­coherence
Technical documentationdoc.chdb.ioopentsdb.net/­docs/­build/­html/­index.htmldocs.oracle.com/­en/­middleware/­standalone/­coherence
Developercurrently maintained by Yahoo and other contributorsOracle
Initial release202320112007
Current release14.1, August 2023
License infoCommercial or Open SourceOpen Source infoApache Version 2.0Open Source infoLGPLcommercial
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaJava
Server operating systemsserver-lessLinux
Windows
All OS with a Java VM
Data schemeschema-freeschema-free
Typing infopredefined data types such as float or datenumeric data for metrics, strings for tagsyes
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 indexesnono
SQL infoSupport of SQLClose to ANSI SQL (SQL/JSON + extensions)nono
APIs and other access methodsHTTP API
Telnet API
JCache
JPA
RESTful HTTP API
Supported programming languagesBun
C
C++
Go
JavaScript (Node.js)
Python
Rust
Erlang
Go
Java
Python
R
Ruby
.Net
C++
Java
Server-side scripts infoStored proceduresnono
Triggersnoyes infoLive Events
Partitioning methods infoMethods for storing different data on different nodesSharding infobased on HBaseSharding
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on HBaseyes, with selectable consistency level
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency infobased on HBaseEventual Consistency
Immediate Consistency
Foreign keys infoReferential integritynono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoconfigurable
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes infooptionally
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes
User concepts infoAccess controlnoauthentification to access the cache via certificates or http basic authentication

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More resources
chDBOpenTSDBOracle Coherence
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