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DBMS > CockroachDB vs. Ehcache vs. OushuDB vs. SAP Advantage Database Server vs. VelocityDB

System Properties Comparison CockroachDB vs. Ehcache vs. OushuDB vs. SAP Advantage Database Server vs. VelocityDB

Editorial information provided by DB-Engines
NameCockroachDB  Xexclude from comparisonEhcache  Xexclude from comparisonOushuDB  Xexclude from comparisonSAP Advantage Database Server infoformer name: Sybase ADS  Xexclude from comparisonVelocityDB  Xexclude from comparison
SAP Advantage Database Server seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
DescriptionCockroachDB is a distributed database architected for modern cloud applications. It is wire compatible with PostgreSQL and backed by a Key-Value Store, which is either RocksDB or a purpose-built derivative, called Pebble.A widely adopted Java cache with tiered storage optionsA data warehouse powered by Apache HAWQ supporting descriptive analysis and advanced machine learningLow-cost RDBMS with access to ISAM and FoxPro data structuresA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelRelational DBMSKey-value storeRelational DBMSRelational DBMSGraph DBMS
Object oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score6.15
Rank#55  Overall
#33  Relational DBMS
Score4.89
Rank#67  Overall
#8  Key-value stores
Score0.04
Rank#363  Overall
#154  Relational DBMS
Score0.05
Rank#358  Overall
#36  Graph DBMS
#16  Object oriented DBMS
Websitewww.cockroachlabs.comwww.ehcache.orgwww.oushu.com/­product/­oushuDBwww.sap.com/products/advantage-database-server.htmlvelocitydb.com
Technical documentationwww.cockroachlabs.com/­docswww.ehcache.org/­documentationwww.oushu.com/­documentationvelocitydb.com/­UserGuide
DeveloperCockroach LabsTerracotta Inc, owned by Software AGOushuSybase, SAPVelocityDB Inc
Initial release2015200919932011
Current release23.1.1, May 20233.10.0, March 20224.0.1, August 20207.x
License infoCommercial or Open SourceOpen Source infoApache 2.0, commercial license availableOpen Source infoApache Version 2; commercial licenses availablecommercialcommercialcommercial
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageGoJavaC#
Server operating systemsLinux
macOS
Windows
All OS with a Java VMLinuxLinux
Windows
Any that supports .NET
Data schemedynamic schemaschema-freeyesyesyes
Typing infopredefined data types such as float or dateyesyesyesyesyes
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.nononono
Secondary indexesyesnoyesyesyes
SQL infoSupport of SQLyes, wire compatible with PostgreSQLnoFull-featured ANSI SQL supportyesno
APIs and other access methodsJDBCJCacheJDBC
ODBC
.NET Client API
ADO.NET
JDBC
ODBC
OLE DB
.Net
Supported programming languagesC#
C++
Clojure
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
Rust
JavaC
C++
Delphi
Perl
PHP
.Net
Server-side scripts infoStored proceduresnonoyesyesno
Triggersnoyes infoCache Event ListenersyesyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioning (by key range) infoall tables are translated to an ordered KV store and then broken down into 64MB ranges, which are then used as replicas in RAFTSharding infoby using Terracotta ServeryesnoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication using RAFTyes infoby using Terracotta ServerMulti-source replication infoCONFLICT Trigger to resolve replication conflicts
Source-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoHadoop integrationnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyTunable Consistency (Strong, Eventual, Weak)Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDyes infosupports JTA and can work as an XA resourceACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesyes infousing a tiered cache-storage approachyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesno infocaching of (temporary) tables can be configuredyes
User concepts infoAccess controlRole-based access controlnoKerberos, SSL and role based accessfine grained access rights according to SQL-standardBased on Windows Authentication

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More resources
CockroachDBEhcacheOushuDBSAP Advantage Database Server infoformer name: Sybase ADSVelocityDB
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