DBMS > Amazon DynamoDB vs. PostgreSQL vs. VoltDB
System Properties Comparison Amazon DynamoDB vs. PostgreSQL vs. VoltDB
Please select another system to include it in the comparison.
|Editorial information provided by DB-Engines
|Amazon DynamoDB Xexclude from comparison
|PostgreSQL Xexclude from comparison
|VoltDB Xexclude from comparison
|Hosted, scalable database service by Amazon with the data stored in Amazons cloud
|Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL
|Distributed In-Memory NewSQL RDBMS Used for OLTP applications with a high frequency of relatively simple transactions, that can hold all their data in memory
|Primary database model
|Relational DBMS with object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.
|Secondary database models
Graph DBMS with Apache Age
Vector DBMS with pgvector extension
|PostgreSQL Global Development Group www.postgresql.org/developer
|1989 1989: Postgres, 1996: PostgreSQL
|16.2, February 2024
|11.3, April 2022
|License Commercial or Open Source
|commercial free tier for a limited amount of database operations
|Open Source BSD
|Open Source AGPL for Community Edition, commercial license for Enterprise, AWS, and Pro Editions
|Cloud-based only Only available as a cloud service
|DBaaS offerings (sponsored links) Database as a Service
Providers of DBaaS offerings, please contact us to be listed.
|Aiven for PostgreSQL: Fully managed PostgreSQL for developers with 70+ extensions and flexible orchestration tools.
|Server operating systems
OS X for development
|Typing predefined data types such as float or date
|XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.
|yes specific XML-type available, but no XML query functionality.
|SQL Support of SQL
|yes standard with numerous extensions
|yes only a subset of SQL 99
|APIs and other access methods
|RESTful HTTP API
native C library
streaming API for large objects
RESTful HTTP/JSON API
|Supported programming languages
Erlang not officially supported
|Server-side scripts Stored procedures
|user defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.
|yes by integration with AWS Lambda
|Partitioning methods Methods for storing different data on different nodes
|partitioning by range, list and (since PostgreSQL 11) by hash
|Replication methods Methods for redundantly storing data on multiple nodes
|Source-replica replication other methods possible by using 3rd party extensions
|MapReduce Offers an API for user-defined Map/Reduce methods
|no may be implemented via Amazon Elastic MapReduce (Amazon EMR)
|Consistency concepts Methods to ensure consistency in a distributed system
Immediate Consistency can be specified for read operations
|Foreign keys Referential integrity
|no FOREIGN KEY constraints are not supported
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data
|ACID ACID across one or more tables within a single AWS account and region
|ACID Transactions are executed single-threaded within stored procedures
|Concurrency Support for concurrent manipulation of data
|yes Data access is serialized by the server
|Durability Support for making data persistent
|yes Snapshots and command logging
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.
|User concepts Access control
|Access rights for users and roles can be defined via the AWS Identity and Access Management (IAM)
|fine grained access rights according to SQL-standard
|Users and roles with access to stored procedures
More information provided by the system vendor
We invite representatives of system vendors to contact us for updating and extending the system information,
|Related products and services
|CData: Connect to Big Data & NoSQL through standard Drivers.
|pgDash: In-Depth PostgreSQL Monitoring.
Datasentinel: Platform for Monitoring and Analyzing the performance problems of your PostgreSQL Clusters
Redgate webinars: A series of key topics for new PostgreSQL users.
Instaclustr: Fully Hosted & Managed PostgreSQL
Navicat Monitor is a safe, simple and agentless remote server monitoring tool for PostgreSQL and many other database management systems.
Navicat for PostgreSQL is an easy-to-use graphical tool for PostgreSQL database development.
SharePlex is the reliable and affordable data replication solution for PostgreSQL migrations, high availability and more.
Aiven for PostgreSQL: Fully managed PostgreSQL for developers with 70+ extensions and flexible orchestration tools.
Fujitsu Enterprise Postgres: An Enterprise Grade PostgreSQL with the flexibility of a hybrid cloud solution combined with industry leading security, availability and performance.
Timescale: Calling all PostgreSQL users – the 2023 State of PostgreSQL survey is now open! Share your favorite extensions, preferred frameworks, community experiences, and more. Take the survey today!
We invite representatives of vendors of related products to contact us for presenting information about their offerings here.
|DB-Engines blog posts
Cloud-based DBMS's popularity grows at high rates The popularity of cloud-based DBMSs has increased tenfold in four years Increased popularity for consuming DBMS services out of the cloud
The popularity of cloud-based DBMSs has increased tenfold in four years Increased popularity for consuming DBMS services out of the cloud
Increased popularity for consuming DBMS services out of the cloud
PostgreSQL is the DBMS of the Year 2023 Snowflake is the DBMS of the Year 2022, defending the title from last year
Snowflake is the DBMS of the Year 2022, defending the title from last year
|Recent citations in the news
Amazon DynamoDB zero-ETL integration with Amazon Redshift in the US East (Virginia) region
Zendesk Moves from DynamoDB to MySQL and S3 to Save over 80% in Costs
Doing DynamoDB Better, More Affordably, All at Once
AWS announces Amazon DynamoDB zero-ETL integration with Amazon OpenSearch Service
A new and improved AWS CDK construct for Amazon DynamoDB tables | Amazon Web Services
provided by Google News
Best of Makers: PostgreSQL Takes a New Turn
MongoDB vs PostgreSQL: A Comparison of Databases 
Knowledge Bases for Amazon Bedrock now supports Amazon Aurora PostgreSQL and Cohere embedding models ...
Blog Theme - Details
Oracle Introduces PostgreSQL Running Native on OCI
provided by Google News
Unveiling Volt Active Data's game-changing approach to limitless app performance
VoltDB Launches Active(N) Lossless Cross Data Center Replication
VoltDB Combines Streaming, Global Data
VoltDB Upgrades Power, Security of Its In-Memory Database
VoltDB Aims for Fast Big Data Development -- ADTmag
provided by Google News
Share this page