DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. EJDB vs. EventStoreDB vs. GBase vs. SAP Advantage Database Server

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. EJDB vs. EventStoreDB vs. GBase vs. SAP Advantage Database Server

Editorial information provided by DB-Engines
Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	EJDB  Xexclude from comparison	EventStoreDB  Xexclude from comparison	GBase  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	An online MPP (Massively Parallel Processing) data warehousing service based on Greenplum	Embeddable document-store database library with JSON representation of queries (in MongoDB style)	Industrial-strength, open-source database solution built from the ground up for event sourcing.	Widely used RDBMS in China, including analytical, transactional, distributed transactional, and cloud-native data warehousing.	Low-cost RDBMS with access to ISAM and FoxPro data structures
Primary database model	Relational DBMS	Document store	Event Store	Relational DBMS	Relational DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.76 Rank #220   Overall #102   Relational DBMS	Score 0.31 Rank #296   Overall #44   Document stores	Score 1.19 Rank #173   Overall #1   Event Stores	Score 1.05 Rank #186   Overall #86   Relational DBMS
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	github.com/­Softmotions/­ejdb	www.eventstore.com	www.gbase.cn	www.sap.com/products/advantage-database-server.html
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview	github.com/­Softmotions/­ejdb/­blob/­master/­README.md	developers.eventstore.com
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	Softmotions	Event Store Limited	General Data Technology Co., Ltd.	Sybase, SAP
Initial release	2016	2012	2012	2004	1993
Current release			21.2, February 2021	GBase 8a, GBase 8s, GBase 8c
License Commercial or Open Source	commercial	Open Source GPLv2	Open Source	commercial	commercial
Cloud-based only Only available as a cloud service	yes	no	no	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language		C		C, Java, Python
Server operating systems	hosted	server-less	Linux Windows	Linux	Linux Windows
Data scheme	yes	schema-free		yes	yes
Typing predefined data types such as float or date	yes	yes string, integer, double, bool, date, object_id		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	no
Secondary indexes	yes	no		yes	yes
SQL Support of SQL	yes	no		Standard with numerous extensions	yes
APIs and other access methods	JDBC ODBC	in-process shared library		ADO.NET C API JDBC ODBC	.NET Client API ADO.NET JDBC ODBC OLE DB
Supported programming languages	C Java Perl Python R	Actionscript C C# C++ Go Java JavaScript (Node.js) Lua Objective-C Pike Python Ruby		C#	Delphi Perl PHP
Server-side scripts Stored procedures	yes	no		user defined functions	yes
Triggers	yes	no		yes	yes
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service	none		horizontal partitioning (by range, list and hash) and vertical partitioning	none
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service	none		yes	Multi-source replication CONFLICT Trigger to resolve replication conflicts Source-replica replication
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 typically not needed, however similar functionality with collection joins possible		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 Read/Write Locking		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 caching of (temporary) tables can be configured
User concepts Access control	fine grained access rights according to SQL-standard	no		yes	fine grained access rights according to SQL-standard
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	EJDB	EventStoreDB	GBase	SAP Advantage Database Server former name: Sybase ADS
Recent citations in the news	Alibaba Cloud upgrades AnalyticDB with vector database engine 25 July 2023, CloudTech News Two Critical Flaws Found in Alibaba Cloud's PostgreSQL Databases 20 April 2023, The Hacker News Accidental ‘write’ Permissions In Alibaba PostgreSQL Let Attackers Access Sensitive Data 22 April 2023, GBHackers Two critical vulnerabilities spotted in Alibaba Cloud's PostgreSQL databases 21 April 2023, TEISS Alibaba Cloud ignites AI innovation in Singapore with recent hackathon | KrASIA 27 March 2024, KrASIA provided by Google News				SAP Announces Q3 2023 Results: Asia Pacific and Japan View 19 October 2023, SAP News provided by Google News

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