DBMS > Amazon SimpleDB vs. EDB Postgres
System Properties Comparison Amazon SimpleDB vs. EDB Postgres
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|Editorial information provided by DB-Engines
|Amazon SimpleDB Xexclude from comparison
|EDB Postgres Xexclude from comparison
|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
|The EDB Postgres Platform is an enterprise-class data management platform based on the open source database PostgreSQL with flexible deployment options and Oracle compatibility features, complemented by tool kits for management, integration, and migration.
|Primary database model
|Secondary database models
|14, December 2021
|License Commercial or Open Source
|commercial BSD for PostgreSQL-components
|Cloud-based only Only available as a cloud service
|DBaaS offerings (sponsored links) Database as a Service
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|Server operating systems
|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.
|yes All columns are indexed automatically
|SQL Support of SQL
|yes standard with numerous extensions
|APIs and other access methods
|RESTful HTTP API
native C library
streaming API for large objects
|Supported programming languages
|Server-side scripts Stored procedures
|user defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.
|Partitioning methods Methods for storing different data on different nodes
|none Sharding must be implemented in the application
|horizontal partitioning by hash, list or range
|Replication methods Methods for redundantly storing data on multiple nodes
|MapReduce Offers an API for user-defined Map/Reduce methods
|Consistency concepts Methods to ensure consistency in a distributed system
Immediate Consistency can be specified for read operations
|Foreign keys Referential integrity
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data
|no Concurrent data updates can be detected by the application
|Concurrency Support for concurrent manipulation of data
|yes, multi-version concurrency control (MVCC)
|Durability Support for making data persistent
|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
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