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DBMS > LevelDB vs. LokiJS vs. Newts vs. NuoDB vs. OpenMLDB

System Properties Comparison LevelDB vs. LokiJS vs. Newts vs. NuoDB vs. OpenMLDB

Editorial information provided by DB-Engines
NameLevelDB  Xexclude from comparisonLokiJS  Xexclude from comparisonNewts  Xexclude from comparisonNuoDB  Xexclude from comparisonOpenMLDB  Xexclude from comparison
DescriptionEmbeddable fast key-value storage library that provides an ordered mapping from string keys to string valuesIn-memory JavaScript DBMSTime Series DBMS based on CassandraNuoDB is a webscale distributed database that supports SQL and ACID transactionsAn open-source machine learning database that provides a feature platform for training and inference
Primary database modelKey-value storeDocument storeTime Series DBMSRelational DBMSTime Series DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.25
Rank#115  Overall
#19  Key-value stores
Score0.49
Rank#260  Overall
#42  Document stores
Score0.07
Rank#375  Overall
#41  Time Series DBMS
Score0.94
Rank#197  Overall
#92  Relational DBMS
Score0.10
Rank#359  Overall
#36  Time Series DBMS
Websitegithub.com/­google/­leveldbgithub.com/­techfort/­LokiJSopennms.github.io/­newtswww.3ds.com/­nuodb-distributed-sql-databaseopenmldb.ai
Technical documentationgithub.com/­google/­leveldb/­blob/­main/­doc/­index.mdtechfort.github.io/­LokiJSgithub.com/­OpenNMS/­newts/­wikidoc.nuodb.comopenmldb.ai/­docs/­zh/­main
DeveloperGoogleOpenNMS GroupDassault Systèmes infooriginally NuoDB, Inc.4 Paradigm Inc.
Initial release20112014201420132020
Current release1.23, February 20212024-2 February 2024
License infoCommercial or Open SourceOpen Source infoBSDOpen SourceOpen Source infoApache 2.0commercial infolimited edition freeOpen Source
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++JavaScriptJavaC++C++, Java, Scala
Server operating systemsIllumos
Linux
OS X
Windows
server-less, requires a JavaScript environment (browser, Node.js)Linux
OS X
Windows
hosted infoAmazon EC2, Windows Azure, SoftLayer
Linux
OS X
Windows
Linux
Data schemeschema-freeschema-freeschema-freeyesFixed schema
Typing infopredefined data types such as float or datenonoyesyesyes
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.nonononono
Secondary indexesnoyes infovia viewsnoyesyes
SQL infoSupport of SQLnononoyesyes
APIs and other access methodsJavaScript APIHTTP REST
Java API
ADO.NET
JDBC
ODBC
JDBC
SQLAlchemy
Supported programming languagesC++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
JavaScriptJava.Net
C
C++
Go
Java
JavaScript
JavaScript (Node.js)
PHP
Python
Ruby
C++
Go
Java
Python
Scala
Server-side scripts infoStored proceduresnoView functions in JavaScriptnoJava, SQLno
Triggersnoyesnoyesno
Partitioning methods infoMethods for storing different data on different nodesnonenoneSharding infobased on Cassandradata is dynamically stored/cached on the nodes where it is read/writtenhorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesnonenoneselectable replication factor infobased on Cassandrayes infoManaged transparently by NuoDBSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencynoneEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynononoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanono infoatomic operations within a single collection possiblenoACID infotunable commit protocolno
Concurrency infoSupport for concurrent manipulation of datayesyesyes infoMVCCyes
Durability infoSupport for making data persistentyes infowith automatic compression on writesyes infoSerialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.yesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyes infoTemporary tableyes
User concepts infoAccess controlnononoStandard SQL roles/ privileges, Administrative Usersfine grained access rights according to SQL-standard

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More resources
LevelDBLokiJSNewtsNuoDBOpenMLDB
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