DBMS > Alibaba Cloud HybridDB vs. Amazon CloudSearch vs. GBase vs. PostgreSQL vs. SAP SQL Anywhere
System Properties Comparison Alibaba Cloud HybridDB vs. Amazon CloudSearch vs. GBase vs. PostgreSQL vs. SAP SQL Anywhere
|Editorial information provided by DB-Engines|
|Name||Alibaba Cloud HybridDB Xexclude from comparison||Amazon CloudSearch Xexclude from comparison||GBase Xexclude from comparison||PostgreSQL Xexclude from comparison||SAP SQL Anywhere formerly called Adaptive Server Anywhere Xexclude from comparison|
|GBase seems to be discontinued and will be removed from the DB-Engines ranking|
|Description||HybridDB is an online MPP (Massively Parallel Processing) data warehousing service based on Greenplum||A hosted search engine service by Amazon with the data stored in Amazons cloud||An analytical database for business intelligence with large customers in China.||Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL||RDBMS database and synchronization technologies for server, desktop, remote office, and mobile environments|
|Primary database model||Relational DBMS||Search engine||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||Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group||Amazon||PostgreSQL Global Development Group www.postgresql.org/developer||SAP formerly Sybase|
|Initial release||2016||2012||1989 1989: Postgres, 1996: PostgreSQL||1992|
|Current release||GBase 8a||12.1, November 2019||17, July 2015|
|License Commercial or Open Source||commercial||commercial||commercial||Open Source BSD||commercial|
|Cloud-based only Only available as a cloud service||yes||yes||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||hosted||hosted||FreeBSD|
|Typing predefined data types such as float or date||yes||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||yes specific XML-type available, but no XML query functionality.||yes|
|Secondary indexes||yes||yes all search fields are automatically indexed||yes||yes|
|SQL Support of SQL||yes||no||yes standard with numerous extensions||yes|
|APIs and other access methods||JDBC|
native C library
streaming API for large objects
|Supported programming languages||C|
|Server-side scripts Stored procedures||yes||no||user defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.||yes, in C/C++, Java, .Net or Perl|
|Partitioning methods Methods for storing different data on different nodes||Sharding Implicit feature of the cloud service||yes automatic partitioning across Amazon Search Instance as required||partitioning by range, list and (since PostgreSQL 11) by hash||none|
|Replication methods Methods for redundantly storing data on multiple nodes||yes Implicit feature of the cloud service||yes managed transparently by AWS||Master-slave replication other methods possible by using 3rd party extensions||Master-slave replication Database mirroring|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||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||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||no||ACID||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes||yes|
|Durability Support for making data persistent||yes||yes||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no||no||yes|
|User concepts Access control||fine grained access rights according to SQL-standard||authentication via encrypted signatures||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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|Alibaba Cloud HybridDB||Amazon CloudSearch||GBase||PostgreSQL||SAP SQL Anywhere formerly called Adaptive Server Anywhere|
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