DBMS > PostgreSQL vs. Realm vs. SAP SQL Anywhere
System Properties Comparison PostgreSQL vs. Realm vs. SAP SQL Anywhere
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|Editorial information provided by DB-Engines|
|Name||PostgreSQL Xexclude from comparison||Realm Xexclude from comparison||SAP SQL Anywhere formerly called Adaptive Server Anywhere Xexclude from comparison|
|Description||Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL||A mobile DBMS often used as a replacement for SQLite||RDBMS database and synchronization technologies for server, desktop, remote office, and mobile environments|
|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.||Relational DBMS||Relational DBMS|
|Secondary database models||Document store|
|Developer||PostgreSQL Global Development Group www.postgresql.org/developer||Realm||SAP formerly Sybase|
|Initial release||1989 1989: Postgres, 1996: PostgreSQL||2014||1992|
|Current release||11.5, August 2019||17, July 2015|
|License Commercial or Open Source||Open Source BSD||commercial Licenses are free. Parts are open sourced.||commercial|
|Cloud-based only Only available as a cloud service||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||FreeBSD|
|Typing predefined data types such as float or date||yes||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.||yes specific XML-type available, but no XML query functionality.||no||yes|
|SQL Support of SQL||yes standard with numerous extensions||no||yes|
|APIs and other access methods||native C library|
streaming API for large objects
|Supported programming languages||.Net|
|Java with Android only|
|Server-side scripts Stored procedures||user defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.||no||yes, in C/C++, Java, .Net or Perl|
|Triggers||yes||yes Change Listeners||yes|
|Partitioning methods Methods for storing different data on different nodes||partitioning by range, list and (since PostgreSQL 11) by hash||none||none|
|Replication methods Methods for redundantly storing data on multiple nodes||Master-slave replication other methods possible by using 3rd party extensions||none||Master-slave replication Database mirroring|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||yes||no||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||ACID||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes|
|Durability Support for making data persistent||yes||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no||yes In-Memory realm||yes|
|User concepts Access control||fine grained access rights according to SQL-standard||no||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||Dremio is like magic for PostgreSQL accelerating your analytical queries up to 1,000x.|
General SQL Parser: Instantly adding parsing, decoding, analysis and rewrite SQL processing capability to your products.
SQLPro for PostgreSQL: A simple but powerful PostgreSQL database client available on iPhone and iPad as well as macOS.
DBHawk: a web-based PostgreSQL/Greenplum database tool. Boost database development and BI productivity with an online Universal database tool.
Navicat for PostgreSQL is an easy-to-use graphical tool for PostgreSQL database development.
Azure Database for PostgreSQL provides fully managed, enterprise-ready community PostgreSQL database as a service
pgDash: In-Depth PostgreSQL Monitoring.
2ndQuadrant: PostgreSQL Solutions for the Enterprise.
We invite representatives of vendors of related products to contact us for presenting information about their offerings here.
|PostgreSQL||Realm||SAP SQL Anywhere formerly called Adaptive Server Anywhere|
|DB-Engines blog posts|
PostgreSQL is the DBMS of the Year 2018
MySQL, PostgreSQL and Redis are the winners of the March ranking
|Conferences and events|
PostgreSQL Conference, Asia 2019
PostgreSQL Conference, Europe 2019
|Recent citations in the news|
Database PostgreSQL makes transition from academia to enterprise
Microsoft Buys jClarity to Jolt Java Support in Azure
After PostgreSQL, DigitalOcean now adds MySQL and Redis to its managed databases’ offering
Providing Postgres at scale with EnterpriseDB
provided by Google News
Realm explains the benefits of real-time collaboration for mobile apps
Realm Platform 2.0 Is Significant Step Forward for Building Responsive and Real-Time Mobile Applications
Realm Makes PostgreSQL Real-Time with New Connector
Realm Receives Investment from Ericsson Ventures to Advance Development of Edge Computing Solutions
Realm Launches Realm Mobile Platform Professional Edition to Drive Collaborative Realtime Applications
provided by Google News
SAP SQL Anywhere
SAP gives SQL Anywhere a new IoT injection
SAP BAPI (Business Application Programming Interface)
Data Management and the Internet of Things
SAP IoT products: How do they work with ERP and big data?
provided by Google News
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