DBMS > EXASOL vs. PostgreSQL vs. SAP Adaptive Server
System Properties Comparison EXASOL vs. PostgreSQL vs. SAP Adaptive Server
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|Editorial information provided by DB-Engines|
|Name||EXASOL Xexclude from comparison||PostgreSQL Xexclude from comparison||SAP Adaptive Server former name: Sybase ASE Xexclude from comparison|
|Description||High-performance, in-memory, MPP database specifically designed for in-memory analytics.||Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL||The SAP (Sybase) Adaptive Server Enterprise (ASE) is an enterprise-class RDBMS|
|Primary database model||Relational DBMS||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||Exasol||PostgreSQL Global Development Group www.postgresql.org/developer||SAP, Sybase|
|Initial release||2000||1989 1989: Postgres, 1996: PostgreSQL||1987|
|Current release||12.4, August 2020||16.0|
|License Commercial or Open Source||commercial||Open Source BSD||commercial|
|Cloud-based only Only available as a cloud service||no||no||no|
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|Implementation language||C||C and C++|
|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.||no||yes specific XML-type available, but no XML query functionality.||no|
|SQL Support of SQL||yes||yes standard with numerous extensions||yes|
|APIs and other access methods||.Net|
native C library
streaming API for large objects
Tabular Data Stream (TDS)
|Supported programming languages||Java|
|Server-side scripts Stored procedures||user defined functions||user defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.||Java and Transact-SQL|
|Partitioning methods Methods for storing different data on different nodes||Sharding||partitioning by range, list and (since PostgreSQL 11) by hash||horizontal partitioning|
|Replication methods Methods for redundantly storing data on multiple nodes||Source-replica replication other methods possible by using 3rd party extensions||Multi-source replication|
|MapReduce Offers an API for user-defined Map/Reduce methods||yes Hadoop integration||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||yes||yes||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||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes||no|
|User concepts Access control||Access rights for users, groups and roles according to SQL-standard||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||Navicat for PostgreSQL is an easy-to-use graphical tool for PostgreSQL database development.|
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Azure Database for PostgreSQL provides fully managed, enterprise-ready community PostgreSQL database as a service
CYBERTEC: your professional partner for PostgreSQL services and Data Science based on PostgreSQL since 2000. With offices in Austria, Uruguay, Estonia and Switzerland, CYBERTEC operates worldwide!
pgDash: In-Depth PostgreSQL Monitoring.
2ndQuadrant: Mission Critical Databases.
We invite representatives of vendors of related products to contact us for presenting information about their offerings here.
|EXASOL||PostgreSQL||SAP Adaptive Server former name: Sybase ASE|
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