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DBMS > LevelDB vs. Neo4j vs. SAP SQL Anywhere vs. VelocityDB vs. XAP

System Properties Comparison LevelDB vs. Neo4j vs. SAP SQL Anywhere vs. VelocityDB vs. XAP

Editorial information provided by DB-Engines
NameLevelDB  Xexclude from comparisonNeo4j  Xexclude from comparisonSAP SQL Anywhere infoformerly called Adaptive Server Anywhere  Xexclude from comparisonVelocityDB  Xexclude from comparisonXAP  Xexclude from comparison
DescriptionEmbeddable fast key-value storage library that provides an ordered mapping from string keys to string valuesOpen source graph databaseRDBMS database and synchronization technologies for server, desktop, remote office, and mobile environmentsA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)High performant in-memory data grid for mission critical applications. Insight Edge from the same company extends XAP for AI/ML support, BI and other interfaces
Primary database modelKey-value storeGraph DBMSRelational DBMSGraph DBMS
Object oriented DBMS
Document store
Key-value store infoValues are user defined objects
Secondary database modelsObject oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.80
Rank#87  Overall
#15  Key-value stores
Score50.81
Rank#21  Overall
#1  Graph DBMS
Score5.23
Rank#60  Overall
#33  Relational DBMS
Score0.07
Rank#298  Overall
#27  Graph DBMS
#16  Object oriented DBMS
Score0.79
Rank#167  Overall
#25  Document stores
#29  Key-value stores
Websitegithub.com/­google/­leveldbneo4j.comwww.sap.com/­products/­sql-anywhere.htmlvelocitydb.comwww.gigaspaces.com/­products/­xap
Technical documentationgithub.com/­google/­leveldb/­blob/­master/­doc/­index.mdneo4j.com/­docshelp.sap.com/­sql-anywherevelocitydb.com/­UserGuidedocs.gigaspaces.com/­latest/­landing.html
DeveloperGoogleNeo4j, Inc.SAP infoformerly SybaseVelocityDB IncGigaspaces Technologies
Initial release20112007199220112000
Current release1.22, May 20194.0.2, March 202017, July 20157.x14.5.0, June 2019
License infoCommercial or Open SourceOpen Source infoBSDOpen Source infoGPL version3, commercial licenses availablecommercialcommercialOpen Source infoApache Version 2; Commercial licenses available
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 languageC++Java, ScalaC#Java, C++, .Net
Server operating systemsIllumos
Linux
OS X
Windows
Linux infoCan also be used server-less as embedded Java database.
OS X
Solaris
Windows
AIX
HP-UX
Linux
OS X
Solaris
Windows
Any that supports .NETLinux
macOS
Solaris
Windows
Data schemeschema-freeschema-free and schema-optionalyesyesschema-free
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.noyesnono infoXML can be used for describing objects metadata
Secondary indexesnoyes infopluggable indexing subsystem, by default Apache Luceneyesyesyes
SQL infoSupport of SQLnonoyesnoSQL-like query language and DML statements
APIs and other access methodsBolt protocol
Cypher query language
Java API
Neo4j-OGM infoObject Graph Mapper
RESTful HTTP API
Spring Data Neo4j
TinkerPop 3
ADO.NET
HTTP API
JDBC
ODBC
.NetGigaSpaces LRMI
Hibernate
JCache
JDBC
JPA
ODBC
RESTful HTTP API
Spring Data
Supported programming languagesC++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
.Net
Clojure
Elixir
Go
Groovy
Haskell
Java
JavaScript
Perl
PHP
Python
Ruby
Scala
C
C#
C++
Delphi
Java
JavaScript (Node.js)
Perl
PHP
Python
Ruby
.Net.Net
C++
Java
Server-side scripts infoStored proceduresnoyes infoUser defined Procedures and Functionsyes, in C/C++, Java, .Net or Perlnoyes
Triggersnoyes infovia event handleryesCallbacks are triggered when data changesyes infoEvent Listeners
Partitioning methods infoMethods for storing different data on different nodesnonenonenoneShardingSharding infoHash based
Replication methods infoMethods for redundantly storing data on multiple nodesnoneCausal Clustering using Raft protocol infoavailable in in Enterprise Version onlyMaster-slave replication infoDatabase mirroringMaster-master replication infosynchronous or asynchronous
Master-slave replication infosynchronous or asynchronous
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononoyes infoMap-Reduce pattern can be built with XAP task executors
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyCausal and Eventual Consistency configurable in Causal Cluster setup
Immediate Consistency in stand-alone mode
Immediate ConsistencyImmediate ConsistencyImmediate Consistency infoConsistency level configurable: ALL, QUORUM, ANY
Foreign keys infoReferential integritynoyes infoRelationships in graphsyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyes infowith automatic compression on writesyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyes
User concepts infoAccess controlnoUsers, roles and permissions. Pluggable authentication with supported standards (LDAP, Active Directory, Kerberos)fine grained access rights according to SQL-standardBased on Windows AuthenticationRole-based access control
More information provided by the system vendor
LevelDBNeo4jSAP SQL Anywhere infoformerly called Adaptive Server AnywhereVelocityDBXAP
Specific characteristicsNeo4j is a native graph database platform that is built to store, query, analyze...
» more
Competitive advantagesNeo4j database is the only transactional database that combines everything you need...
» more
Typical application scenariosReal-Time Recommendations Master Data Management Identity and Access Management Network...
» more
Key customersOver 300 commercial customers and over 750 startups use Neo4j. Flagship customers...
» more
Market metricsNeo4j boasts the world's largest graph database ecosystem with more than a 15 million...
» more
Licensing and pricing modelsGPL v3 license that can be used all the places where you might use MySQL. Neo4j Commercial...
» more
News

Fujitsu Laboratories of America Partners with Larus to Provide Enhanced Graph AI Technologies to Neo4j Customers
7 April 2020

This Week in Neo4j – COVID-19 Contact Tracing, Supply Chain Management, What’s new in Neo4j Desktop?
4 April 2020

See Your Graphs in Bloom: The 5-Minute Interview with Anurag Tandon, Neo4j
3 April 2020

Detecting Cryptocurrency Fraud with Neo4j
30 March 2020

This Week in Neo4j – Neo4j BI Connector, COVID-19, Supply Chain Management
28 March 2020

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and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

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More resources
LevelDBNeo4jSAP SQL Anywhere infoformerly called Adaptive Server AnywhereVelocityDBXAP
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