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DBMS > AgensGraph vs. chDB vs. Memcached

System Properties Comparison AgensGraph vs. chDB vs. Memcached

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Editorial information provided by DB-Engines
NameAgensGraph  Xexclude from comparisonchDB  Xexclude from comparisonMemcached  Xexclude from comparison
DescriptionMulti-model database supporting relational and graph data models and built upon PostgreSQLAn embedded SQL OLAP Engine powered by ClickHouseIn-memory key-value store, originally intended for caching
Primary database modelGraph DBMS
Relational DBMS
Relational DBMSKey-value store
Secondary database modelsTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.17
Rank#320  Overall
#29  Graph DBMS
#143  Relational DBMS
Score0.05
Rank#358  Overall
#152  Relational DBMS
Score16.84
Rank#32  Overall
#4  Key-value stores
Websitebitnine.net/­agensgraphgithub.com/­chdb-io/­chdbwww.memcached.org
Technical documentationbitnine.net/­documentationdoc.chdb.iogithub.com/­memcached/­memcached/­wiki
DeveloperBitnine Global Inc.Danga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournal
Initial release201620232003
Current release2.1, December 20181.6.29, June 2024
License infoCommercial or Open SourceOpen Source infoApache License 2.0Open Source infoApache Version 2.0Open Source infoBSD license
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageCC
Server operating systemsLinux
OS X
Windows
server-lessFreeBSD
Linux
OS X
Unix
Windows
Data schemedepending on used data modelschema-free
Typing infopredefined data types such as float or dateyesno
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.no
Secondary indexesyesno
SQL infoSupport of SQLyesClose to ANSI SQL (SQL/JSON + extensions)no
APIs and other access methodsCypher Query Language
JDBC
Proprietary protocol
Supported programming languagesC
Java
JavaScript
Python
Bun
C
C++
Go
JavaScript (Node.js)
Python
Rust
.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
Server-side scripts infoStored proceduresyesno
Triggersnono
Partitioning methods infoMethods for storing different data on different nodesno, but can be realized using table inheritancenone
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationnone infoRepcached, a Memcached patch, provides this functionallity
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integrityyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDno
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesno
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.no
User concepts infoAccess controlfine grained access rights according to SQL-standardyes infousing SASL (Simple Authentication and Security Layer) protocol

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More resources
AgensGraphchDBMemcached
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