DBMS > Ehcache vs. GeoMesa vs. SAP Advantage Database Server vs. VelocityDB

System Properties Comparison Ehcache vs. GeoMesa vs. SAP Advantage Database Server vs. VelocityDB

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Editorial information provided by DB-Engines
Name	Ehcache  Xexclude from comparison	GeoMesa  Xexclude from comparison	SAP Advantage Database Server former name: Sybase ADS  Xexclude from comparison	VelocityDB  Xexclude from comparison
Description	A widely adopted Java cache with tiered storage options	GeoMesa is a distributed spatio-temporal DBMS based on various systems as storage layer.	Low-cost RDBMS with access to ISAM and FoxPro data structures	A .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database model	Key-value store	Spatial DBMS	Relational DBMS	Graph DBMS Object oriented DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 6.54 Rank #64   Overall #8   Key-value stores	Score 0.75 Rank #203   Overall #3   Spatial DBMS	Score 3.66 Rank #91   Overall #48   Relational DBMS	Score 0.04 Rank #337   Overall #35   Graph DBMS #17   Object oriented DBMS
Website	www.ehcache.org	www.geomesa.org	www.sap.com/­products/­advantage-database-server.html	velocitydb.com
Technical documentation	www.ehcache.org/­documentation	www.geomesa.org/­documentation/­stable/­user/­index.html		velocitydb.com/­UserGuide
Developer	Terracotta Inc, owned by Software AG	CCRi and others	Sybase, SAP	VelocityDB Inc
Initial release	2009	2014	1993	2011
Current release	3.9.6, September 2021	3.2.0, April 2021		7.x
License Commercial or Open Source	Open Source Apache Version 2; commercial licenses available	Open Source Apache License 2.0	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	Java	Scala		C#
Server operating systems	All OS with a Java VM		Linux Windows	Any that supports .NET
Data scheme	schema-free	yes	yes	yes
Typing predefined data types such as float or date	yes	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.	no	no	no	no
Secondary indexes	no	yes	yes	yes
SQL Support of SQL	no	no	yes	no
APIs and other access methods	JCache		.NET Client API ADO.NET JDBC ODBC OLE DB	.Net
Supported programming languages	Java		Delphi Perl PHP	.Net
Server-side scripts Stored procedures	no	no	yes	no
Triggers	yes Cache Event Listeners	no	yes	Callbacks are triggered when data changes
Partitioning methods Methods for storing different data on different nodes	Sharding by using Terracotta Server	depending on storage layer	none	Sharding
Replication methods Methods for redundantly storing data on multiple nodes	yes by using Terracotta Server	depending on storage layer	Multi-source replication CONFLICT Trigger to resolve replication conflicts Source-replica replication
MapReduce Offers an API for user-defined Map/Reduce methods	no	yes	no	no
Consistency concepts Methods to ensure consistency in a distributed system	Tunable Consistency (Strong, Eventual, Weak)	depending on storage layer	Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	no	no	yes	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	yes supports JTA and can work as an XA resource	no	ACID	ACID
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes
Durability Support for making data persistent	yes using a tiered cache-storage approach	yes	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	yes	depending on storage layer	no caching of (temporary) tables can be configured	yes
User concepts Access control	no	yes depending on the DBMS used for storage	fine grained access rights according to SQL-standard	Based on Windows Authentication
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More resources
	Ehcache	GeoMesa	SAP Advantage Database Server former name: Sybase ADS	VelocityDB
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