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DBMS > Dgraph vs. LevelDB vs. PlanetScale vs. SAP IQ vs. VelocityDB

System Properties Comparison Dgraph vs. LevelDB vs. PlanetScale vs. SAP IQ vs. VelocityDB

Editorial information provided by DB-Engines
NameDgraph  Xexclude from comparisonLevelDB  Xexclude from comparisonPlanetScale  Xexclude from comparisonSAP IQ infoformer name: Sybase IQ  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionDistributed and scalable native Graph DBMSEmbeddable fast key-value storage library that provides an ordered mapping from string keys to string valuesScalable, distributed, serverless MySQL database platform built on top of VitessColumnar RDBMS optimized for Big Data analyticsA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelGraph DBMSKey-value storeRelational DBMSRelational DBMS infocolumn-orientedGraph DBMS
Object oriented DBMS
Secondary database modelsDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.45
Rank#156  Overall
#15  Graph DBMS
Score2.35
Rank#111  Overall
#19  Key-value stores
Score1.59
Rank#151  Overall
#70  Relational DBMS
Score2.75
Rank#104  Overall
#53  Relational DBMS
Score0.05
Rank#358  Overall
#36  Graph DBMS
#16  Object oriented DBMS
Websitedgraph.iogithub.com/­google/­leveldbplanetscale.comwww.sap.com/­products/­technology-platform/­sybase-iq-big-data-management.htmlvelocitydb.com
Technical documentationdgraph.io/­docsgithub.com/­google/­leveldb/­blob/­main/­doc/­index.mdplanetscale.com/­docshelp.sap.com/­docs/­SAP_IQvelocitydb.com/­UserGuide
DeveloperDgraph Labs, Inc.GooglePlanetScaleSAP, formerly SybaseVelocityDB Inc
Initial release20162011202019942011
Current release1.23, February 202116.1 SPS04, April 20197.x
License infoCommercial or Open SourceOpen Source infoApache 2.0Open Source infoBSDcommercialcommercialcommercial
Cloud-based only infoOnly available as a cloud servicenonoyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageGoC++GoC#
Server operating systemsLinux
OS X
Windows
Illumos
Linux
OS X
Windows
Docker
Linux
macOS
AIX
HP-UX
Linux
Solaris
Windows
Any that supports .NET
Data schemeschema-freeschema-freeyesyesyes
Typing infopredefined data types such as float or dateyesnoyesyesyes
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 indexesyesnoyesyesyes
SQL infoSupport of SQLnonoyes infowith proprietary extensionsyesno
APIs and other access methodsGraphQL query language
gRPC (using protocol buffers) API
HTTP API
ADO.NET
JDBC
MySQL protocol
ODBC
ADO.NET
JDBC
ODBC
RESTful HTTP API
.Net
Supported programming languagesC#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
C++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
Ada
C
C#
C++
D
Delphi
Eiffel
Erlang
Haskell
Java
JavaScript (Node.js)
Objective-C
OCaml
Perl
PHP
Python
Ruby
Scheme
Tcl
C
C#
C++
Java
Perl
PHP
Python
Ruby
.Net
Server-side scripts infoStored proceduresnonoyes infoproprietary syntaxyesno
TriggersnonoyesyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesyesnoneShardingshared disk or shared nothing architectures with SAP IQ MultiplexerSharding
Replication methods infoMethods for redundantly storing data on multiple nodesSynchronous replication via RaftnoneMulti-source replication
Source-replica replication
SAP/Sybase Replication Server
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononoHadoop integrationno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyEventual Consistency across shards
Immediate Consistency within a shard
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyes infonot for MyISAM storage engineyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnoACID at shard levelACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes infotable locks or row locks depending on storage engineyesyes
Durability infoSupport for making data persistentyesyes infowith automatic compression on writesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyes
User concepts infoAccess controlno infoPlanned for future releasesnoUsers with fine-grained authorization concept infono user groups or rolesfine grained access rights according to SQL-standardBased on Windows Authentication

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More resources
DgraphLevelDBPlanetScaleSAP IQ infoformer name: Sybase IQVelocityDB
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