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DBMS > Apache Cassandra vs. Dgraph vs. GreptimeDB

System Properties Comparison Apache Cassandra vs. Dgraph vs. GreptimeDB

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Editorial information provided by DB-Engines
NameApache Cassandra  Xexclude from comparisonDgraph  Xexclude from comparisonGreptimeDB  Xexclude from comparison
DescriptionWide-column store based on ideas of BigTable and DynamoDB infoOptimized for write accessDistributed and scalable native Graph DBMSAn open source Time Series DBMS built for increased scalability, high performance and efficiency
Primary database modelWide column storeGraph DBMSTime Series DBMS
Secondary database modelsVector DBMS infostarting with release V5
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score108.05
Rank#11  Overall
#1  Wide column stores
Score1.25
Rank#160  Overall
#15  Graph DBMS
Score0.15
Rank#325  Overall
#29  Time Series DBMS
Websitecassandra.apache.orgdgraph.iogreptime.com
Technical documentationcassandra.apache.org/­doc/­latestdgraph.io/­docsdocs.greptime.com
DeveloperApache Software Foundation infoApache top level project, originally developped by FacebookDgraph Labs, Inc.Greptime Inc.
Initial release200820162022
Current release5.0-rc1, July 2024
License infoCommercial or Open SourceOpen Source infoApache version 2Open Source infoApache 2.0Open Source infoApache Version 2.0
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaGoRust
Server operating systemsBSD
Linux
OS X
Windows
Linux
OS X
Windows
Android
Docker
FreeBSD
Linux
macOS
Windows
Data schemeschema-freeschema-freeschema-free, schema definition possible
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.nonono
Secondary indexesrestricted infoonly equality queries, not always the best performing solutionyesyes
SQL infoSupport of SQLSQL-like SELECT, DML and DDL statements (CQL)noyes
APIs and other access methodsProprietary protocol infoCQL (Cassandra Query Language, an SQL-like language)
Thrift
GraphQL query language
gRPC (using protocol buffers) API
HTTP API
gRPC
HTTP API
JDBC
Supported programming languagesC#
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript infoNode.js
Perl
PHP
Python
Ruby
Scala
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
C++
Erlang
Go
Java
JavaScript
Server-side scripts infoStored proceduresnonoPython
Triggersyesno
Partitioning methods infoMethods for storing different data on different nodesSharding infono "single point of failure"yesSharding
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infoRepresentation of geographical distribution of servers is possibleSynchronous replication via Raft
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency infocan be individually decided for each write operation
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano infoAtomicity and isolation are supported for single operationsACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.no
User concepts infoAccess controlAccess rights for users can be defined per objectno infoPlanned for future releasesSimple rights management via user accounts
More information provided by the system vendor
Apache CassandraDgraphGreptimeDB
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More resources
Apache CassandraDgraphGreptimeDB
Recent citations in the news

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8 November 2024, Amazon Web Services (AWS)

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25 February 2025, theregister.com

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