DBMS > Apache Kylin vs. EJDB vs. EventStoreDB vs. SAP Advantage Database Server

System Properties Comparison Apache Kylin vs. EJDB vs. EventStoreDB vs. SAP Advantage Database Server

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Name	Apache Kylin  Xexclude from comparison	EJDB  Xexclude from comparison	EventStoreDB  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	A distributed analytics engine for big data, providing a SQL interface and multi-dimensional analysis (OLAP) and leveraging the Hadoop stack	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
Primary database model	Relational DBMS	Document store	Event Store	Relational DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 1.25 Rank #170   Overall #77   Relational DBMS	Score 0.31 Rank #296   Overall #44   Document stores	Score 1.19 Rank #173   Overall #1   Event Stores
Website	kylin.apache.org	github.com/­Softmotions/­ejdb	www.eventstore.com	www.sap.com/products/advantage-database-server.html
Technical documentation	kylin.apache.org/­docs	github.com/­Softmotions/­ejdb/­blob/­master/­README.md	developers.eventstore.com
Developer	Apache Software Foundation, originally contributed from eBay Inc	Softmotions	Event Store Limited	Sybase, SAP
Initial release	2015	2012	2012	1993
Current release	3.1.0, July 2020		21.2, February 2021
License Commercial or Open Source	Open Source Apache Version 2.0	Open Source GPLv2	Open Source	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	Java	C
Server operating systems	Linux	server-less	Linux Windows	Linux Windows
Data scheme	yes	schema-free		yes
Typing predefined data types such as float or date	yes	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.	no			no
Secondary indexes	yes	no		yes
SQL Support of SQL	ANSI SQL for queries (using Apache Calcite)	no		yes
APIs and other access methods	JDBC ODBC RESTful HTTP API	in-process shared library		.NET Client API ADO.NET JDBC ODBC OLE DB
Supported programming languages		Actionscript C C# C++ Go Java JavaScript (Node.js) Lua Objective-C Pike Python Ruby		Delphi Perl PHP
Server-side scripts Stored procedures		no		yes
Triggers		no		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	yes	no		no
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency			Immediate Consistency
Foreign keys Referential integrity		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		no		ACID
Concurrency Support for concurrent manipulation of data	yes	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			no caching of (temporary) tables can be configured
User concepts Access control		no		fine grained access rights according to SQL-standard
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More resources
	Apache Kylin	EJDB	EventStoreDB	SAP Advantage Database Server former name: Sybase ADS
Recent citations in the news	Migrating from ClickHouse to Apache Doris: Boosting OLAP Performance 9 October 2023, hackernoon.com Introducing Kyligence Copilot: The AI Copilot for Data to Excel Your KPIs 23 August 2023, insideBIGDATA Overhauling Apache Kylin for the cloud 18 November 2021, InfoWorld eBay's Kylin Becomes a Top-Level Apache Open Source Project 9 December 2015, eBay Inc. How Kyligence Cloud uses Amazon EMR Serverless to simplify OLAP | Amazon Web Services 9 November 2022, AWS Blog 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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