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DBMS > etcd vs. MonetDB vs. NuoDB vs. SurrealDB vs. Titan

System Properties Comparison etcd vs. MonetDB vs. NuoDB vs. SurrealDB vs. Titan

Editorial information provided by DB-Engines
Nameetcd  Xexclude from comparisonMonetDB  Xexclude from comparisonNuoDB  Xexclude from comparisonSurrealDB  Xexclude from comparisonTitan  Xexclude from comparison
Titan has been decommisioned after the takeover by Datastax. It will be removed from the DB-Engines ranking. A fork has been open-sourced as JanusGraph.
DescriptionA distributed reliable key-value storeA relational database management system that stores data in columnsNuoDB is a webscale distributed database that supports SQL and ACID transactionsA fully ACID transactional, developer-friendly, multi-model DBMSTitan is a Graph DBMS optimized for distributed clusters.
Primary database modelKey-value storeRelational DBMSRelational DBMSDocument store
Graph DBMS
Graph DBMS
Secondary database modelsDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score7.03
Rank#54  Overall
#5  Key-value stores
Score1.72
Rank#141  Overall
#64  Relational DBMS
Score0.94
Rank#197  Overall
#92  Relational DBMS
Score1.02
Rank#190  Overall
#33  Document stores
#18  Graph DBMS
Websiteetcd.io
github.com/­etcd-io/­etcd
www.monetdb.orgwww.3ds.com/­nuodb-distributed-sql-databasesurrealdb.comgithub.com/­thinkaurelius/­titan
Technical documentationetcd.io/­docs
github.com/­etcd-io/­etcd/­tree/­master/­Documentation
www.monetdb.org/­Documentationdoc.nuodb.comsurrealdb.com/­docsgithub.com/­thinkaurelius/­titan/­wiki
DeveloperMonetDB BVDassault Systèmes infooriginally NuoDB, Inc.SurrealDB LtdAurelius, owned by DataStax
Initial release2004201320222012
Current release3.4, August 2019Dec2023 (11.49), December 2023v1.5.0, May 2024
License infoCommercial or Open SourceOpen Source infoApache Version 2.0Open Source infoMozilla Public License 2.0commercial infolimited edition freeOpen SourceOpen Source infoApache license, version 2.0
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.
Implementation languageGoCC++RustJava
Server operating systemsFreeBSD
Linux
Windows infoexperimental
FreeBSD
Linux
OS X
Solaris
Windows
hosted infoAmazon EC2, Windows Azure, SoftLayer
Linux
OS X
Windows
Linux
macOS
Windows
Linux
OS X
Unix
Windows
Data schemeschema-freeyesyesschema-freeyes
Typing infopredefined data types such as float or datenoyesyesyesyes
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 indexesnoyesyesyes
SQL infoSupport of SQLnoyes infoSQL 2003 with some extensionsyesSQL-like query languageno
APIs and other access methodsgRPC
JSON over HTTP
JDBC
native C library infoMAPI library (MonetDB application programming interface)
ODBC
ADO.NET
JDBC
ODBC
GraphQL
RESTful HTTP API
WebSocket
Java API
TinkerPop Blueprints
TinkerPop Frames
TinkerPop Gremlin
TinkerPop Rexster
Supported programming languages.Net
C
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
Rust
Scala
Tcl
C
C++
Java
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
.Net
C
C++
Go
Java
JavaScript
JavaScript (Node.js)
PHP
Python
Ruby
Deno
Go
JavaScript (Node.js)
Rust
Clojure
Java
Python
Server-side scripts infoStored proceduresnoyes, in SQL, C, RJava, SQLyes
Triggersyes, watching key changesyesyesyes
Partitioning methods infoMethods for storing different data on different nodesSharding via remote tablesdata is dynamically stored/cached on the nodes where it is read/writtenyes infovia pluggable storage backends
Replication methods infoMethods for redundantly storing data on multiple nodesUsing Raft consensus algorithm to ensure data replication with strong consistency among multiple replicas.none infoSource-replica replication available in experimental statusyes infoManaged transparently by NuoDByes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononoyes infovia Faunus, a graph analytics engine
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyEventual Consistency
Immediate Consistency
Foreign keys infoReferential integritynoyesyesyes infoRelationships in graph
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDACID infotunable commit protocolACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes infoMVCCyesyes
Durability infoSupport for making data persistentyesyesyesyesyes infoSupports various storage backends: Cassandra, HBase, Berkeley DB, Akiban, Hazelcast
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes infoTemporary table
User concepts infoAccess controlnofine grained access rights according to SQL-standardStandard SQL roles/ privileges, Administrative Usersyes, based on authentication and database rulesUser authentification and security via Rexster Graph Server

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More resources
etcdMonetDBNuoDBSurrealDBTitan
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