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DBMS > Memcached vs. NebulaGraph vs. Percona Server for MongoDB vs. SingleStore vs. Weaviate

System Properties Comparison Memcached vs. NebulaGraph vs. Percona Server for MongoDB vs. SingleStore vs. Weaviate

Editorial information provided by DB-Engines
NameMemcached  Xexclude from comparisonNebulaGraph  Xexclude from comparisonPercona Server for MongoDB  Xexclude from comparisonSingleStore infoformer name was MemSQL  Xexclude from comparisonWeaviate  Xexclude from comparison
DescriptionIn-memory key-value store, originally intended for cachingA distributed, linear scalable, high perfomant Graph DBMSA drop-in replacement for MongoDB Community Edition with enterprise-grade features.MySQL wire-compliant distributed RDBMS that combines an in-memory row-oriented and a disc-based column-oriented storage with patented universal storage to handle transactional and analytical workloads in one single table typeAn AI-native realtime vector database engine that integrates scalable machine learning models.
Primary database modelKey-value storeGraph DBMSDocument storeRelational DBMSVector DBMS
Secondary database modelsDocument store
Spatial DBMS
Time Series DBMS
Vector DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score18.08
Rank#32  Overall
#4  Key-value stores
Score2.23
Rank#116  Overall
#10  Graph DBMS
Score0.60
Rank#246  Overall
#39  Document stores
Score5.38
Rank#62  Overall
#35  Relational DBMS
Score1.52
Rank#153  Overall
#6  Vector DBMS
Websitewww.memcached.orggithub.com/­vesoft-inc/­nebula
www.nebula-graph.io
www.percona.com/­mongodb/­software/­percona-server-for-mongodbwww.singlestore.comgithub.com/­weaviate/­weaviate
weaviate.io
Technical documentationgithub.com/­memcached/­memcached/­wikidocs.nebula-graph.iodocs.percona.com/­percona-distribution-for-mongodbdocs.singlestore.comweaviate.io/­developers/­weaviate
DeveloperDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalVesoft Inc.PerconaSingleStore Inc.Weaviate B.V.
Initial release20032019201520132019
Current release1.6.27, May 20243.4.10-2.10, November 20178.5, January 20241.19, May 2023
License infoCommercial or Open SourceOpen Source infoBSD licenseOpen Source infoApache Version 2.0 + Common Clause 1.0Open Source infoGPL Version 2commercial infofree developer edition availableOpen Source infocommercial license available with Weaviate Enterprise
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
SingleStoreDB Cloud: The world's fastest, modern cloud database for both operational (OLTP) and analytical (OLAP) workloads. Available instantly with multi-cloud and hybrid-cloud capabilities
Implementation languageCC++C++C++, GoGo
Server operating systemsFreeBSD
Linux
OS X
Unix
Windows
LinuxLinuxLinux info64 bit version required
Data schemeschema-freeStrong typed schemaschema-freeyesyes, maps to GraphQL interface
Typing infopredefined data types such as float or datenoyesyesyesyes infostring, int, float, geo point, date, cross reference, fuzzy references
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 indexesnoyes infoNebula Graph internally uses the Key-Value store RocksDB for persistency. The vertices, edges, and their properties are stored as Key while their values are stored as Value. The primary indexes are per Key and secondary indexes are per Value.yesyesyes infoall data objects are indexed in a semantic vector space (the Contextionary), all primitive fields are indexed
SQL infoSupport of SQLnoSQL-like query languagenoyes infobut no triggers and foreign keysGraphQL is used as query language
APIs and other access methodsProprietary protocolBrowser interface
console (shell)
Cypher Query Language
GO Object Graph Mapper
Java Object Graph Mapper
NGBatis infoORM framework for NebulaGraph and Spring-Boot
Proprietary native API
Python Object Graph Mapper
Query language nGQL
proprietary protocol using JSONCluster Management API infoas HTTP Rest and CLI
HTTP API
JDBC
MongoDB API
ODBC
GraphQL query language
RESTful HTTP/JSON API
Supported programming languages.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
.Net
C++
Go
Java
PHP
Python
Actionscript
C
C#
C++
Clojure
ColdFusion
D
Dart
Delphi
Erlang
Go
Groovy
Haskell
Java
JavaScript
Lisp
Lua
MatLab
Perl
PHP
PowerShell
Prolog
Python
R
Ruby
Scala
Smalltalk
Bash
C
C#
Java
JavaScript (Node.js)
Python
JavaScript / TypeScript
Python
Server-side scripts infoStored proceduresnouser defined functionsJavaScriptyesno
Triggersnononono
Partitioning methods infoMethods for storing different data on different nodesnoneShardingShardingSharding infohash partitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoRepcached, a Memcached patch, provides this functionallityCausal Clustering using Raft protocolSource-replica replicationSource-replica replication infostores two copies of each physical data partition on two separate nodesyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyesno infocan define user-defined aggregate functions for map-reduce-style calculationsno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency
Immediate Consistency
Immediate ConsistencyEventual Consistency
Foreign keys infoReferential integritynoyes infoRelationships in graphsnonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDnoACIDno
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes, multi-version concurrency control (MVCC)yes
Durability infoSupport for making data persistentnoyes infousing RocksDByesyes infoAll updates are persistent, including those to disk-based columnstores and memory-based row stores. Transaction commits are supported via write-ahead log.yes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes infovia In-Memory Engineyesyes
User concepts infoAccess controlyes infousing SASL (Simple Authentication and Security Layer) protocolRole-based access controlAccess rights for users and rolesFine grained access control via users, groups and rolesAPI Keys
OpenID Connect Discovery
More information provided by the system vendor
MemcachedNebulaGraphPercona Server for MongoDBSingleStore infoformer name was MemSQLWeaviate
Specific characteristicsNebulaGraph is a truly distributed, linearly scalable, lightning-fast graph database,...
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SingleStore offers a fully-managed , distributed, highly-scalable SQL database designed...
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Weaviate is an open source vector database that is robust, scalable, cloud-native,...
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Competitive advantagesNebulaGraph boasts the world's only graph database solution that is able to host...
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SingleStore’s competitive advantages include: Easy and Simplified Architecture with...
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Flexible deployment - Free, open source or fully-managed cloud vector database service...
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Typical application scenariosSocial networking Fraud detection Knowledge graph Data warehouse management Anti...
» more
Driving Fast Analytics: SingleStore delivers the fastest and most scalable reporting...
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As a database supporting the development of generative AI and semantic search applications...
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Key customersCompanies from a variety of industries have implemented NebulaGraph Database in production,...
» more
IEX Cloud : Improves Financial Data Distribution Speed 15x with Singlestore DB Comcast,...
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All companies that have data. ​
» more
Market metricsAt our very early stage, NebulaGraph has already received over 10,000 stars on GitHub...
» more
Customers in various industries worldwide including US and International Industry...
» more
As of mid 2023: Over 2 million open source downloads 3500+ Weaviate Slack community...
» more
Licensing and pricing modelsNebulaGraph is open source and free to use under Apache 2.0 license.
» more
F ree Tier and Enterprise Edition
» more
Weaviate is open-source, and free to use. Weaviate is also available as a fully managed...
» more

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MemcachedNebulaGraphPercona Server for MongoDBSingleStore infoformer name was MemSQLWeaviate
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