DBMS > EJDB vs. EventStoreDB vs. SAP Advantage Database Server vs. Valentina Server

System Properties Comparison EJDB vs. EventStoreDB vs. SAP Advantage Database Server vs. Valentina Server

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Editorial information provided by DB-Engines
Name	EJDB  Xexclude from comparison	EventStoreDB  Xexclude from comparison	SAP Advantage Database Server former name: Sybase ADS  Xexclude from comparison	Valentina Server  Xexclude from comparison
			SAP Advantage Database Server seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
Description	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.	Low-cost RDBMS with access to ISAM and FoxPro data structures	Object-relational database and reports server
Primary database model	Document store	Event Store	Relational DBMS	Relational DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.31 Rank #296   Overall #44   Document stores	Score 1.19 Rank #173   Overall #1   Event Stores		Score 0.21 Rank #325   Overall #144   Relational DBMS
Website	github.com/­Softmotions/­ejdb	www.eventstore.com	www.sap.com/products/advantage-database-server.html	www.valentina-db.net
Technical documentation	github.com/­Softmotions/­ejdb/­blob/­master/­README.md	developers.eventstore.com		valentina-db.com/­docs/­dokuwiki/­v5/­doku.php
Developer	Softmotions	Event Store Limited	Sybase, SAP	Paradigma Software
Initial release	2012	2012	1993	1999
Current release		21.2, February 2021		5.7.5
License Commercial or Open Source	Open Source GPLv2	Open Source	commercial	commercial
Cloud-based only Only available as a cloud service	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
Server operating systems	server-less	Linux Windows	Linux Windows	Linux OS X Windows
Data scheme	schema-free		yes	yes
Typing predefined data types such as float or date	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.			no
Secondary indexes	no		yes	yes
SQL Support of SQL	no		yes	yes
APIs and other access methods	in-process shared library		.NET Client API ADO.NET JDBC ODBC OLE DB	ODBC
Supported programming languages	Actionscript C C# C++ Go Java JavaScript (Node.js) Lua Objective-C Pike Python Ruby		Delphi Perl PHP	.Net C C# C++ Objective-C PHP Ruby Visual Basic Visual Basic.NET
Server-side scripts Stored procedures	no		yes	yes
Triggers	no		yes	yes
Partitioning methods Methods for storing different data on different nodes	none		none
Replication methods Methods for redundantly storing data on multiple nodes	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
Consistency concepts Methods to ensure consistency in a distributed system			Immediate Consistency
Foreign keys Referential integrity	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	no		ACID
Concurrency Support for concurrent manipulation of data	yes Read/Write Locking		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 caching of (temporary) tables can be configured	yes
User concepts Access control	no		fine grained access rights according to SQL-standard	fine grained access rights according to SQL-standard
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More resources
	EJDB	EventStoreDB	SAP Advantage Database Server former name: Sybase ADS	Valentina Server
Recent citations in the news			SAP Announces Q3 2023 Results: Asia Pacific and Japan View 19 October 2023, SAP News provided by Google News	A Look at Valentina — SitePoint 18 April 2014, SitePoint MySQL GUI Tools for Windows and Ubuntu/Linux: Top 8 free or open source 7 December 2018, H2S Media provided by Google News

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