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 > Netezza vs. PostgreSQL vs. VoltDB vs. Weaviate

System Properties Comparison Netezza vs. PostgreSQL vs. VoltDB vs. Weaviate

Please select another system to include it in the comparison.

Editorial information provided by DB-Engines
NameNetezza infoAlso called PureData System for Analytics by IBM  Xexclude from comparisonPostgreSQL  Xexclude from comparisonVoltDB  Xexclude from comparisonWeaviate  Xexclude from comparison
DescriptionData warehouse and analytics appliance part of IBM PureSystemsWidely used open source RDBMS infoDeveloped as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQLDistributed In-Memory NewSQL RDBMS infoUsed for OLTP applications with a high frequency of relatively simple transactions, that can hold all their data in memoryA cloud-native, realtime vector search engine integrating scalable machine learning models
Primary database modelRelational DBMSRelational DBMS infowith object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.Relational DBMSSearch engine
Secondary database modelsDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score20.25
Rank#36  Overall
#22  Relational DBMS
Score608.21
Rank#4  Overall
#4  Relational DBMS
Score1.72
Rank#131  Overall
#66  Relational DBMS
Score0.14
Rank#297  Overall
#15  Search engines
Websitewww.ibm.com/­products/­netezzawww.postgresql.orgwww.voltdb.comgithub.com/­semi-technologies/­weaviate
www.semi.technology/­solutions/­weaviate
Technical documentationwww.postgresql.org/­docsdocs.voltdb.comwww.semi.technology/­developers/­weaviate/­current
DeveloperIBMPostgreSQL Global Development Group infowww.postgresql.org/­developerVoltDB Inc.SeMI Technologies B.V.
Initial release20001989 info1989: Postgres, 1996: PostgreSQL20102017
Current release14.1, November 202110.1, October 20201.0.3, January 2021
License infoCommercial or Open SourcecommercialOpen Source infoBSDOpen Source infoAGPL for Community Edition, commercial license for Enterprise, AWS, and Pro EditionsOpen Source infocommercial license available with Weaviate Enterprise
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 languageCJava, C++Go
Server operating systemsLinux infoincluded in applianceFreeBSD
HP-UX
Linux
NetBSD
OpenBSD
OS X
Solaris
Unix
Windows
Linux
OS X infofor development
Data schemeyesyesyesyes, maps to GraphQL interface
Typing infopredefined data types such as float or dateyesyesyesyes infostring, int, float, geo point, date, cross reference, fuzzy references
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.yes infospecific XML-type available, but no XML query functionality.no
Secondary indexesyesyesyesyes infoall data objects are indexed in a semantic vector space (the Contextionary), all primitive fields are indexed
SQL infoSupport of SQLyesyes infostandard with numerous extensionsyes infoonly a subset of SQL 99GraphQL is used as query language
APIs and other access methodsJDBC
ODBC
OLE DB
ADO.NET
JDBC
native C library
ODBC
streaming API for large objects
Java API
JDBC
RESTful HTTP/JSON API
GraphQL query language
RESTful HTTP/JSON API
Supported programming languagesC
C++
Fortran
Java
Lua
Perl
Python
R
.Net
C
C++
Delphi
Java infoJDBC
JavaScript (Node.js)
Perl
PHP
Python
Tcl
C#
C++
Erlang infonot officially supported
Go
Java
JavaScript infoNode.js
PHP
Python
Server-side scripts infoStored proceduresyesuser defined functions inforealized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.Javano
Triggersnoyesnono
Partitioning methods infoMethods for storing different data on different nodesShardingpartitioning by range, list and (since PostgreSQL 11) by hashShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationSource-replica replication infoother methods possible by using 3rd party extensionsMulti-source replication
Source-replica replication
yes
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency
Foreign keys infoReferential integritynoyesno infoFOREIGN KEY constraints are not supportedno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACID infoTransactions are executed single-threaded within stored proceduresno
Concurrency infoSupport for concurrent manipulation of datayesyesyes infoData access is serialized by the serveryes
Durability infoSupport for making data persistentyesyesyes infoSnapshots and command loggingyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nono
User concepts infoAccess controlUsers with fine-grained authorization conceptfine grained access rights according to SQL-standardUsers and roles with access to stored proceduresOpenID Connect Discovery
More information provided by the system vendor
Netezza infoAlso called PureData System for Analytics by IBMPostgreSQLVoltDBWeaviate
News

Weaviate in IEEE

Weaviate on DB-engines.com

Introduction & Demo video

FLOSS Weekly Podcast

FOSDEM 2020 video

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 partiesCYBERTEC 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

EDB: BigAnimal is fully-managed PostgreSQL in the cloud from the database fanatics at EDB.
» more

Instaclustr: Fully Hosted & Managed PostgreSQL
» more

Fivetran: Quickly and easily centralize your on-premise and cloud databases.
» more

pgDash: In-Depth PostgreSQL Monitoring.
» 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

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

More resources
Netezza infoAlso called PureData System for Analytics by IBMPostgreSQLVoltDBWeaviate
DB-Engines blog posts

Driving the Future of PostgreSQL Adoption
15 November 2021,  Umair Shahid, Percona (sponsor) 

The Inexorable Rise of PostgreSQL
24 September 2021,  Matt Yonkovit, Percona (sponsor) 

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

show all

Weaviate, an ANN Database with CRUD support
2 February 2021,  Etienne Dilocker, SeMI Technologies (sponsor) 

show all

Recent citations in the news

Next Pathway named Most Innovative Company of the Year in Best in Biz Awards
7 December 2021, Canada NewsWire

IBM Brings Back a Netezza, Attacks Yellowbrick
29 June 2020, Datanami

The Accelerated Path To Petabyte-Scale Graph Databases
28 October 2021, The Next Platform

IBM to Acquire Netezza for $1.78 Billion - WSJ
20 September 2010, Wall Street Journal

IBM to buy analytics company Netezza for $1.7 billion
20 September 2010, Reuters

provided by Google News

How to Build Your Backend with Hasura and PostgreSQL
30 November 2021, SitePoint

Postgres Build 2021 Conference to Feature Leading PostgreSQL Experts
18 November 2021, Business Wire

Flexible Server for Azure Database for PostgreSQL Now Commercially Available
1 December 2021, Redmondmag.com

Yugabyte Meets Developer Demand for Comprehensive PostgreSQL Compatibility with YugabyteDB 2.11
23 November 2021, Valdosta Daily Times

Move Over To PostgreSQL With Babelfish and MangoDB
16 November 2021, iProgrammer

provided by Google News

VoltDB Announces Key New Hires to Accelerate Telco Business Growth
26 October 2021, PRNewswire

´╗┐VoltDB Launches Active(N) Lossless Cross Data Center Replication
31 August 2021, PRNewswire

How is Google approaching MEC monetization?
7 December 2021, RCR Wireless News

VoltDB Partners with Google Cloud for 5G Edge Applications
24 June 2021, PRNewswire

Outlook on the In-Memory Database Global Market to 2026 - by Data Type, Application, End-user, Vertical and Region - ResearchAndMarkets.com
16 November 2021, Yahoo Finance

provided by Google News

Weaviate is an open-source search engine powered by ML, vectors, graphs, and GraphQL
7 April 2021, ZDNet

The History of the Weaviate Vector Search Engine
9 May 2020, hackernoon.com

Getting Started with the Weaviate Vector Search Engine
18 May 2020, hackernoon.com

Weaviate Is A Search Engine For Vector Embeddings
11 May 2020, hackernoon.com

Why the rise of vector databases is a revolution for data analysis
7 July 2021, TechGenix

provided by Google News

Job opportunities

Datastage Developer w/ Control M , Netezza
NR Consulting LLC, San Antonio, TX

Netezza Developer
ACS Group, Jacksonville, FL

ETL PM
Larsen & Toubro Infotech Limited, Irving, TX

Tableau Administrator
Lucid Motors, Newark, CA

Data & AI Specialist
Microsoft, New York, NY

Linux Systems Administrator
Teramind, Remote

Database Administrator (PostgreSQL) | Remote or In-Office
Randall-Reilly, Tuscaloosa, AL

PostgreSQL Database Administrator
Clayton Homes, Greensboro, NC

Software Engineering Apprentice
Basis Technologies, Chicago, IL

Data Quality Analyst
Cleveland Cavaliers, Cleveland, OH

jobs by Indeed



Share this page

Featured Products

Datastax Astra logo

Build cloud-native apps fast with Astra, the open-source, multi-cloud stack for
modern data apps.
Get started with 80GB free.

Neo4j logo

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

Couchbase logo

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

Vertica logo

Vertica Accelerator. The fastest analytics and machine learning, delivered as SaaS, with automated setup, administration, and management. Free trial.

MariaDB logo

SkySQL, the ultimate
MariaDB cloud, is here.

Get started with SkySQL today!

Present your product here