DB-EnginesExtremeDB: the first and only COTS deterministic embedded database management system for mission- and safety-critical hard real-time applicationsEnglish
Deutsch
Knowledge Base of Relational and NoSQL Database Management Systemsprovided by solid IT

DBMS > Blueflood vs. Drizzle vs. Nebula Graph vs. PostgreSQL

System Properties Comparison Blueflood vs. Drizzle vs. Nebula Graph vs. PostgreSQL

Please select another system to include it in the comparison.

Editorial information provided by DB-Engines
NameBlueflood  Xexclude from comparisonDrizzle  Xexclude from comparisonNebula Graph  Xexclude from comparisonPostgreSQL  Xexclude from comparison
Drizzle has published its last release in September 2012. The open-source project is discontinued and Drizzle is excluded from the DB-Engines ranking.
DescriptionScalable TimeSeries DBMS based on CassandraMySQL fork with a pluggable micro-kernel and with an emphasis of performance over compatibility.A distributed, linear scalable, high perfomant Graph DBMSWidely used open source RDBMS infoDeveloped as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL
Primary database modelTime Series DBMSRelational DBMSGraph DBMSRelational DBMS infowith object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.
Secondary database modelsDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.16
Rank#297  Overall
#25  Time Series DBMS
Score1.10
Rank#168  Overall
#15  Graph DBMS
Score577.50
Rank#4  Overall
#4  Relational DBMS
Websiteblueflood.iogithub.com/­vesoft-inc/­nebula
nebula-graph.io
www.postgresql.org
Technical documentationgithub.com/­rackerlabs/­blueflood/­wikidocs.nebula-graph.iowww.postgresql.org/­docs
DeveloperRackspaceDrizzle project, originally started by Brian AkerVesoft Inc.PostgreSQL Global Development Group infowww.postgresql.org/­developer
Initial release2013200820191989 info1989: Postgres, 1996: PostgreSQL
Current release7.2.4, September 201213.4, August 2021
License infoCommercial or Open SourceOpen Source infoApache 2.0Open Source infoGNU GPLOpen Source infoApache Version 2.0 + Common Clause 1.0Open Source infoBSD
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
ScaleGrid for PostgreSQL: Fully managed PostgreSQL hosting on AWS, Azure and DigitalOcean with high availability and SSH access on the #1 multi-cloud DBaaS.
Implementation languageJavaC++C++C
Server operating systemsLinux
OS X
FreeBSD
Linux
OS X
LinuxFreeBSD
HP-UX
Linux
NetBSD
OpenBSD
OS X
Solaris
Unix
Windows
Data schemepredefined schemeyesStrong typed schemayes
Typing infopredefined data types such as float or dateyesyesyesyes
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.nonoyes infospecific XML-type available, but no XML query functionality.
Secondary indexesnoyesyes 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.yes
SQL infoSupport of SQLnoyes infowith proprietary extensionsSQL-like query languageyes infostandard with numerous extensions
APIs and other access methodsHTTP RESTJDBCBrowser interface
console (shell)
Proprietary native API
Query language nGQL
ADO.NET
JDBC
native C library
ODBC
streaming API for large objects
Supported programming languagesC
C++
Java
PHP
C++
Go
Java
Python
.Net
C
C++
Delphi
Java infoJDBC
JavaScript (Node.js)
Perl
PHP
Python
Tcl
Server-side scripts infoStored proceduresnonouser defined functions inforealized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.
Triggersnono infohooks for callbacks inside the server can be used.yes
Partitioning methods infoMethods for storing different data on different nodesSharding infobased on CassandraShardingShardingpartitioning by range, list and (since PostgreSQL 11) by hash
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on CassandraMulti-source replication
Source-replica replication
Causal Clustering using Raft protocolSource-replica replication infoother methods possible by using 3rd party extensions
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesyes infoRelationships in graphsyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyes infousing RocksDByes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesno
User concepts infoAccess controlnoPluggable authentication mechanisms infoe.g. LDAP, HTTPRole-based access controlfine grained access rights according to SQL-standard
More information provided by the system vendor
BluefloodDrizzleNebula GraphPostgreSQL
Specific characteristicsNebula Graph is a truly distributed, linearly scalable, lightning-fast graph database,...
» more
Competitive advantagesNebula Graph boasts the world's only graph database solution that is able to host...
» more
Typical application scenariosSocial networking Fraud detection Knowledge graph Data warehouse management Anti...
» more
Key customersCurrently we have some top internet companies in China implementing Nebula Graph...
» more
Market metricsAt our very early stage, Nebula Graph has already received 3.5k stars and thousands...
» more
Licensing and pricing modelsNebula Graph is open source and free to use under Apache 2.0 license and Common Clause...
» more
News

Nebula Graph Source Code Explained: RBO
14 September 2021

Game Pocket Monsters with Nebula Graph
3 September 2021

Nebula Graph Source Code Explained: Validator
20 August 2021

Nebula Graph Source Code Explained: An Overview
13 August 2021

Nebula Graph Source Code Explained | Vol.00 Preface
5 August 2021

We invite representatives of system vendors to contact us for updating and extending the system information,
and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

Related products and services
3rd partiesFivetran: Quickly and easily centralize your on-premise and cloud databases.
» more

Navicat for PostgreSQL is an easy-to-use graphical tool for PostgreSQL database development.
» more

SQLFlow: Provides a visual representation of the overall flow of data. Automated SQL data lineage analysis across Databases, ETL, Business Intelligence, Cloud and Hadoop environments by parsing SQL Script and stored procedure.
» more

CYBERTEC is your professional partner for PostgreSQL services and Data Science since 2000. With offices in Austria, Uruguay, Estonia, Poland, South Africa and Switzerland, CYBERTEC operates worldwide and is here for you 24/7!
» more

ClusterControl: the only management system you’ll ever need to take control of your open source database infrastructure.
» more

EDB: Helping organizations get the most from PostgreSQL, Oracle Migration, High Availability, Security
» more

pgDash: In-Depth PostgreSQL Monitoring.
» more

We invite representatives of vendors of related products to contact us for presenting information about their offerings here.

More resources
BluefloodDrizzleNebula GraphPostgreSQL
DB-Engines blog posts

MySQL won the April ranking; did its forks follow?
1 April 2015, Paul Andlinger

Has MySQL finally lost its mojo?
1 July 2013, Matthias Gelbmann

show all

PostgreSQL is the DBMS of the Year 2020
4 January 2021, Paul Andlinger, Matthias Gelbmann

PostgreSQL is the DBMS of the Year 2018
2 January 2019, Paul Andlinger, Matthias Gelbmann

PostgreSQL is the DBMS of the Year 2017
2 January 2018, Paul Andlinger, Matthias Gelbmann

show all

Recent citations in the news

Real-Time Performance and Health Monitoring Using Netdata
2 September 2019, CNX Software

provided by Google News

Third Time Is The Charm For Nebula Graph Database
19 January 2021, The Next Platform

Announcing winners of the OTEC-Emerge Technology Awards
17 September 2021, TechNode

The future of graph database: vesoft unveils Nebula Graph 2.0 GA
24 March 2021, PR Web

Nebula Graph open sources Nebula Operator, embraces cloud native
29 April 2021, PR Web

Graph Database Startup Vesoft Seeks Funds at $1 Billion Value
5 July 2021, Bloomberg

provided by Google News

Crunchy Data provides trusted PostgreSQL containers in partnership with DoD
21 September 2021, Geospatial World

Crunchy Data Delivers Trusted PostgreSQL Containers In Collaboration With The U.S. Department Of Defense
20 September 2021, Index-Journal

Instaclustr Including PostgreSQL in Managed Data Platform - Now in Public Preview
19 September 2021, insideBIGDATA

Instaclustr Adds PostgreSQL to Managed Platform in Public Preview
14 September 2021, Yahoo Finance

Oracle to PostgreSQL? 6 Reasons to Make Your Open Source Migration
16 September 2021, insideBIGDATA

provided by Google News

Job opportunities

Software Tester
Miva, Remote

PostgreSQL Senior DBA
M&T Bank, Buffalo, NY

PostgreSQL DBA
Luxoft, Remote

PostgreSQL Database Administrator
EPAM Systems, Nashville, TN

Azure postgresql
laiba Techologies, San Antonio, TX

jobs by Indeed



Share this page

Featured Products

MariaDB logo

SkySQL, the ultimate
MariaDB cloud, is here.

Get started with SkySQL today!

Datastax Astra logo

Build cloud-native apps fast with Astra, the open-source, multi-cloud stack for
modern data apps.
Get started with 5 GB free..

Couchbase logo

The modern database for enterprise applications. Build fast. Scale Big. Save more.
Get started today.

AllegroGraph logo

Graph Database Leader for AI Knowledge Graph Applications - The Most Secure Graph Database Available.
Free Download

Neo4j logo

See for yourself how a graph database can make your life easier.
Use Neo4j online for free.

Present your product here