DBMS > PostgreSQL vs. Quasardb vs. SAP Advantage Database Server
System Properties Comparison PostgreSQL vs. Quasardb vs. SAP Advantage Database Server
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|Editorial information provided by DB-Engines|
|Name||PostgreSQL Xexclude from comparison||Quasardb Xexclude from comparison||SAP Advantage Database Server former name: Sybase ADS Xexclude from comparison|
|SAP Advantage Database Server seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.|
|Description||Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL||Distributed, high-performance timeseries database||Low-cost RDBMS with access to ISAM and FoxPro data structures|
|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.||Time Series DBMS||Relational DBMS|
|Secondary database models||Document store|
Graph DBMS with Apache Age
Vector DBMS with pgvector extension
|Developer||PostgreSQL Global Development Group www.postgresql.org/developer||quasardb||Sybase, SAP|
|Initial release||1989 1989: Postgres, 1996: PostgreSQL||2009||1993|
|Current release||16.1, November 2023||3.13.3, April 2022|
|License Commercial or Open Source||Open Source BSD||commercial Free community edition, Non-profit organizations and non-commercial usage are eligible for free licenses||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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|Aiven for PostgreSQL: Fully managed PostgreSQL for developers with 70+ extensions and flexible orchestration tools.|
|Server operating systems||FreeBSD|
|Typing predefined data types such as float or date||yes||yes integer and binary||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||no|
|Secondary indexes||yes||yes with tags||yes|
|SQL Support of SQL||yes standard with numerous extensions||SQL-like query language||yes|
|APIs and other access methods||ADO.NET|
native C library
streaming API for large objects
|HTTP API||.NET Client API|
|Supported programming languages||.Net|
|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|
|Partitioning methods Methods for storing different data on different nodes||partitioning by range, list and (since PostgreSQL 11) by hash||Sharding consistent hashing||none|
|Replication methods Methods for redundantly storing data on multiple nodes||Source-replica replication other methods possible by using 3rd party extensions||Source-replica replication with selectable replication factor||Multi-source replication CONFLICT Trigger to resolve replication conflicts|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||with Hadoop integration||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||yes|
|Durability Support for making data persistent||yes||yes by using LevelDB||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no||yes Transient mode||no caching of (temporary) tables can be configured|
|User concepts Access control||fine grained access rights according to SQL-standard||Cryptographically strong user authentication and audit trail||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||Navicat Monitor is a safe, simple and agentless remote server monitoring tool for PostgreSQL and many other database management systems.|
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Navicat for PostgreSQL is an easy-to-use graphical tool for PostgreSQL database development.
Instaclustr: Fully Hosted & Managed PostgreSQL
Aiven for PostgreSQL: Fully managed PostgreSQL for developers with 70+ extensions and flexible orchestration tools.
We invite representatives of vendors of related products to contact us for presenting information about their offerings here.
|PostgreSQL||Quasardb||SAP Advantage Database Server former name: Sybase ADS|
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