DBMS > FatDB vs. LokiJS vs. PostgreSQL vs. SAP SQL Anywhere
System Properties Comparison FatDB vs. LokiJS vs. PostgreSQL vs. SAP SQL Anywhere
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|Editorial information provided by DB-Engines|
|Name||FatDB Xexclude from comparison||LokiJS Xexclude from comparison||PostgreSQL Xexclude from comparison||SAP SQL Anywhere formerly called Adaptive Server Anywhere Xexclude from comparison|
|FatDB/FatCloud has ceased operations as a company with February 2014. FatDB is discontinued and excluded from the ranking.|
|Primary database model||Document 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.||Relational DBMS|
|Secondary database models||Document store|
|Developer||FatCloud||PostgreSQL Global Development Group www.postgresql.org/developer||SAP formerly Sybase|
|Initial release||2012||2014||1989 1989: Postgres, 1996: PostgreSQL||1992|
|Current release||12.3, May 2020||17, July 2015|
|License Commercial or Open Source||commercial||Open Source||Open Source BSD||commercial|
|Cloud-based only Only available as a cloud service||no||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Typing predefined data types such as float or date||yes||no||yes||yes|
|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.||yes|
|Secondary indexes||yes||yes via views||yes||yes|
|SQL Support of SQL||no Via inetgration in SQL Server||no||yes standard with numerous extensions||yes|
|APIs and other access methods||.NET Client API|
RESTful HTTP API
Windows WCF Bindings
native C library
streaming API for large objects
|Triggers||yes via applications||yes||yes||yes|
|Partitioning methods Methods for storing different data on different nodes||Sharding||none||partitioning by range, list and (since PostgreSQL 11) by hash||none|
|Replication methods Methods for redundantly storing data on multiple nodes||selectable replication factor||none||Source-replica replication other methods possible by using 3rd party extensions||Source-replica replication Database mirroring|
|MapReduce Offers an API for user-defined Map/Reduce methods||yes||yes||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Eventual Consistency|
|none||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||no||no||yes||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no||no atomic operations within a single collection possible||ACID||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes|
|Durability Support for making data persistent||yes||yes Serialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes||no||yes|
|User concepts Access control||no Can implement custom security layer via applications||no||fine grained access rights according to SQL-standard||fine grained access rights according to SQL-standard|
More information provided by the system vendor
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|Related products and services|
|3rd parties||2ndQuadrant: Mission Critical Databases.|
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|FatDB||LokiJS||PostgreSQL||SAP SQL Anywhere formerly called Adaptive Server Anywhere|
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