DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. EJDB vs. mSQL vs. Postgres-XL vs. SAP Advantage Database Server

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. EJDB vs. mSQL vs. Postgres-XL 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	mSQL Mini SQL  Xexclude from comparison	Postgres-XL  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)	mSQL (Mini SQL) is a simple and lightweight RDBMS	Based on PostgreSQL enhanced with MPP and write-scale-out cluster features	Low-cost RDBMS with access to ISAM and FoxPro data structures
Primary database model	Relational DBMS	Document store	Relational DBMS	Relational DBMS	Relational DBMS
Secondary database models				Document store Spatial 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 1.27 Rank #169   Overall #76   Relational DBMS	Score 0.53 Rank #254   Overall #117   Relational DBMS
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	github.com/­Softmotions/­ejdb	hughestech.com.au/­products/­msql	www.postgres-xl.org	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		www.postgres-xl.org/­documentation
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	Softmotions	Hughes Technologies		Sybase, SAP
Initial release	2016	2012	1994	2014 since 2012, originally named StormDB	1993
Current release			4.4, October 2021	10 R1, October 2018
License Commercial or Open Source	commercial	Open Source GPLv2	commercial free licenses can be provided	Open Source Mozilla public license	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	C
Server operating systems	hosted	server-less	AIX HP-UX Linux OS X Solaris SPARC/x86 Windows	Linux macOS	Linux Windows
Data scheme	yes	schema-free	yes	yes	yes
Typing predefined data types such as float or date	yes	yes string, integer, double, bool, date, object_id	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		no	yes XML type, but no XML query functionality	no
Secondary indexes	yes	no	yes	yes	yes
SQL Support of SQL	yes	no	A subset of ANSI SQL is implemented no subqueries, aggregate functions, views, foreign keys, triggers	yes distributed, parallel query execution	yes
APIs and other access methods	JDBC ODBC	in-process shared library	JDBC ODBC	ADO.NET JDBC native C library ODBC streaming API for large objects	.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 C++ Delphi Java Perl PHP Tcl	.Net C C++ Delphi Erlang Java JavaScript (Node.js) Perl PHP Python Tcl	Delphi Perl PHP
Server-side scripts Stored procedures	yes	no	no	user defined functions	yes
Triggers	yes	no	no	yes	yes
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service	none	none	horizontal partitioning	none
Replication methods Methods for redundantly storing data on multiple nodes	yes Implicit feature of the cloud service	none	none		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	no	no
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency		none	Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	yes	no typically not needed, however similar functionality with collection joins possible	no	yes	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	no	no	ACID MVCC	ACID
Concurrency Support for concurrent manipulation of data	yes	yes Read/Write Locking	no	yes	yes
Durability Support for making data persistent	yes	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	no	no caching of (temporary) tables can be configured
User concepts Access control	fine grained access rights according to SQL-standard	no	no	fine grained access rights according to SQL-standard	fine grained access rights according to SQL-standard
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	EJDB	mSQL Mini SQL	Postgres-XL	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 How Data Analytics Capabilities of Alibaba Group Evolve Its Ecosystem to the Cloud 20 February 2021, DataDrivenInvestor provided by Google News		Higher Education PS rules out ghost students before PAC – Zambia 29 November 2018, diggers.news 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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