DBMS > Alibaba Cloud AnalyticDB for PostgreSQL vs. atoti vs. Cachelot.io vs. EJDB vs. SAP Advantage Database Server

System Properties Comparison Alibaba Cloud AnalyticDB for PostgreSQL vs. atoti vs. Cachelot.io vs. EJDB vs. SAP Advantage Database Server

Editorial information provided by DB-Engines
Name	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB  Xexclude from comparison	atoti  Xexclude from comparison	Cachelot.io  Xexclude from comparison	EJDB  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	An in-memory DBMS combining transactional and analytical processing to handle the aggregation of ever-changing data.	In-memory caching system	Embeddable document-store database library with JSON representation of queries (in MongoDB style)	Low-cost RDBMS with access to ISAM and FoxPro data structures
Primary database model	Relational DBMS	Object oriented DBMS	Key-value store	Document store	Relational DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.76 Rank #220   Overall #102   Relational DBMS	Score 0.61 Rank #243   Overall #11   Object oriented DBMS	Score 0.04 Rank #388   Overall #62   Key-value stores	Score 0.31 Rank #296   Overall #44   Document stores
Website	www.alibabacloud.com/­product/­hybriddb-postgresql	atoti.io	cachelot.io	github.com/­Softmotions/­ejdb	www.sap.com/products/advantage-database-server.html
Technical documentation	www.alibabacloud.com/­help/­en/­analyticdb-for-postgresql/­latest/­product-introduction-overview	docs.atoti.io		github.com/­Softmotions/­ejdb/­blob/­master/­README.md
Developer	Alibaba / Pivotal Software Inc. / PostgreSQL Global Development Group	ActiveViam		Softmotions	Sybase, SAP
Initial release	2016		2015	2012	1993
License Commercial or Open Source	commercial	commercial free versions available	Open Source Simplified BSD License	Open Source GPLv2	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		Java	C++	C
Server operating systems	hosted		FreeBSD Linux OS X	server-less	Linux Windows
Data scheme	yes		schema-free	schema-free	yes
Typing predefined data types such as float or date	yes		no	yes string, integer, double, bool, date, object_id	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		no
Secondary indexes	yes		no	no	yes
SQL Support of SQL	yes	Multidimensional Expressions (MDX)	no	no	yes
APIs and other access methods	JDBC ODBC		Memcached protocol	in-process shared library	.NET Client API ADO.NET JDBC ODBC OLE DB
Supported programming languages	C Java Perl Python R		.Net C C++ ColdFusion Erlang Java Lisp Lua OCaml OCaml Perl PHP Python Ruby	Actionscript C C# C++ Go Java JavaScript (Node.js) Lua Objective-C Pike Python Ruby	Delphi Perl PHP
Server-side scripts Stored procedures	yes	Python	no	no	yes
Triggers	yes		no	no	yes
Partitioning methods Methods for storing different data on different nodes	Sharding Implicit feature of the cloud service	Sharding, horizontal partitioning	none	none	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
Foreign keys Referential integrity	yes		no	no typically not needed, however similar functionality with collection joins possible	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID		no	no	ACID
Concurrency Support for concurrent manipulation of data	yes	yes, multi-version concurrency control (MVCC)	yes	yes Read/Write Locking	yes
Durability Support for making data persistent	yes		no	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	no	yes	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
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More resources
	Alibaba Cloud AnalyticDB for PostgreSQL former name was HybridDB	atoti	Cachelot.io	EJDB	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	Overview Of Atoti: A Python BI Analytics Tool – AIM 14 May 2021, Analytics India Magazine FRTB product of the year: ActiveViam 28 November 2023, Risk.net 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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