DBMS > Adabas vs. Alibaba Cloud MaxCompute vs. PostgreSQL
System Properties Comparison Adabas vs. Alibaba Cloud MaxCompute vs. PostgreSQL
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|Name||Adabas denotes "adaptable data base" Xexclude from comparison||Alibaba Cloud MaxCompute Xexclude from comparison||PostgreSQL Xexclude from comparison|
|Description||OLTP - DBMS for mainframes and Linux/Unix/Windows environments used typically together with the Natural programming platform||MaxCompute (previously known as ODPS) is a general purpose, fully managed, multi-tenancy data processing platform for large-scale data warehousing||Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL|
|Primary database model||Multivalue DBMS||Relational DBMS a graph-processing framework is available with the graphs being stored in tables||Relational DBMS with object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.|
|Secondary database models||Document store|
|Developer||Software AG||Alibaba||PostgreSQL Global Development Group www.postgresql.org/developer|
|Initial release||1971||2016||1989 1989: Postgres, 1996: PostgreSQL|
|Current release||14.4, June 2022|
|License Commercial or Open Source||commercial||commercial||Open Source BSD|
|Cloud-based only Only available as a cloud service||no||yes||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||BS2000|
|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||no||yes specific XML-type available, but no XML query functionality.|
|SQL Support of SQL||yes with add-on product Adabas SQL Gateway||SQL-like query language||yes standard with numerous extensions|
|APIs and other access methods||HTTP API with add-on software Adabas SOA Gateway|
SOAP-based API with add-on software Adabas SOA Gateway
native C library
streaming API for large objects
|Supported programming languages||Natural||Java||.Net|
|Server-side scripts Stored procedures||in Natural||user defined functions in Java||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||yes, with additonal products like Adabas Cluster Services, Adabas Parallel Services, Adabas Vista||Sharding Implicit feature of the cloud service||partitioning by range, list and (since PostgreSQL 11) by hash|
|Replication methods Methods for redundantly storing data on multiple nodes||yes, with add-on product Event Replicator||yes Implicit feature of the cloud service||Source-replica replication other methods possible by using 3rd party extensions|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||yes||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||no||no||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||no||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.||no||no||no|
|User concepts Access control||only with OS-specific tools (e.g. IBM RACF, CA Top Secret)||Access rights for users and roles||fine grained access rights according to SQL-standard|
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|Adabas denotes "adaptable data base"||Alibaba Cloud MaxCompute||PostgreSQL|
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