DBMS > Amazon SimpleDB vs. IBM Cloudant vs. PostgreSQL vs. STSdb
System Properties Comparison Amazon SimpleDB vs. IBM Cloudant vs. PostgreSQL vs. STSdb
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|Editorial information provided by DB-Engines|
|Name||Amazon SimpleDB Xexclude from comparison||IBM Cloudant Xexclude from comparison||PostgreSQL Xexclude from comparison||STSdb Xexclude from comparison|
|Description||Hosted simple database service by Amazon, with the data stored in the Amazon Cloud. There is an unrelated product called SimpleDB developed by Edward Sciore||Database as a Service offering based on Apache CouchDB||Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL||Key-Value Store with special method for indexing optimized for high performance using a special indexing method|
|Primary database model||Key-value store||Document store||Relational DBMS with object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.||Key-value store|
|Secondary database models||Document store|
|Developer||Amazon||IBM, Apache Software Foundation IBM acquired Cloudant in February 2014||PostgreSQL Global Development Group www.postgresql.org/developer||STS Soft SC|
|Initial release||2007||2010||1989 1989: Postgres, 1996: PostgreSQL||2011|
|Current release||14.1, November 2021||4.0.8, September 2015|
|License Commercial or Open Source||commercial||commercial||Open Source BSD||Open Source GPLv2, commercial license available|
|Cloud-based only Only available as a cloud service||yes||yes||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|ScaleGrid for PostgreSQL: Fully managed PostgreSQL hosting on AWS, Azure and DigitalOcean with high availability and SSH access on the #1 multi-cloud DBaaS.|
|Server operating systems||hosted||hosted||FreeBSD|
|Typing predefined data types such as float or date||no||no||yes||yes primitive types and user defined types (classes)|
|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.||no||yes specific XML-type available, but no XML query functionality.|
|Secondary indexes||yes All columns are indexed automatically||yes||yes||no|
|SQL Support of SQL||no||no||yes standard with numerous extensions||no|
|APIs and other access methods||RESTful HTTP API||RESTful HTTP/JSON API||ADO.NET|
native C library
streaming API for large objects
|.NET Client API|
|Supported programming languages||.Net|
|Partitioning methods Methods for storing different data on different nodes||none Sharding must be implemented in the application||Sharding||partitioning by range, list and (since PostgreSQL 11) by hash||none|
|Replication methods Methods for redundantly storing data on multiple nodes||yes||Multi-source replication|
|Source-replica replication other methods possible by using 3rd party extensions||none|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||yes||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Eventual Consistency|
Immediate Consistency can be specified for read operations
|Eventual Consistency||Immediate Consistency|
|Foreign keys Referential integrity||no||no||yes||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no Concurrent data updates can be detected by the application||no atomic operations within a document possible||ACID||no|
|Concurrency Support for concurrent manipulation of data||yes||yes Optimistic locking||yes||yes|
|Durability Support for making data persistent||yes||yes||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no||no|
|User concepts Access control||Access rights for users and roles can be defined via the AWS Identity and Access Management (IAM)||Access rights for users can be defined per database||fine grained access rights according to SQL-standard||no|
More information provided by the system vendor
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|Related products and services|
|3rd parties||Instaclustr: Fully Hosted & Managed PostgreSQL|
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EDB: BigAnimal is fully-managed PostgreSQL in the cloud from the database fanatics at EDB.
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We invite representatives of vendors of related products to contact us for presenting information about their offerings here.
|Amazon SimpleDB||IBM Cloudant||PostgreSQL||STSdb|
|DB-Engines blog posts|
The popularity of cloud-based DBMSs has increased tenfold in four years
Driving the Future of PostgreSQL Adoption
|Conferences and events|
Postgres Build 2021
Latest Performance Features in PostgreSQL 14
PostgreSQL Performance Tuning Secrets
|Recent citations in the news|
Introducing Amazon SimpleDB
Amazon SimpleDB overview
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When should a developer transition to DBaaS?
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