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DBMS > RocksDB vs. VoltDB

System Properties Comparison RocksDB vs. VoltDB

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Editorial information provided by DB-Engines
NameRocksDB  Xexclude from comparisonVoltDB  Xexclude from comparison
DescriptionEmbeddable persistent key-value store optimized for fast storage (flash and RAM)Distributed In-Memory NewSQL RDBMS infoUsed for OLTP applications with a high frequency of relatively simple transactions, that can hold all their data in memory
Primary database modelKey-value storeRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.42
Rank#99  Overall
#18  Key-value stores
Score1.55
Rank#126  Overall
#62  Relational DBMS
Websiterocksdb.orgwww.voltdb.com
Technical documentationgithub.com/­facebook/­rocksdb/­wikidocs.voltdb.com
DeveloperFacebook, Inc.VoltDB Inc.
Initial release20132010
Current release6.3.6, October 20199.0, April 2019
License infoCommercial or Open SourceOpen Source infoBSDOpen Source infoAGPL for Community Edition, commercial license for Enterprise, AWS, and Pro Editions
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++Java, C++
Server operating systemsLinux
OS X infofor development
Data schemeschema-freeyes
Typing infopredefined data types such as float or datenoyes
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.no
Secondary indexesnoyes
SQL infoSupport of SQLnoyes infoonly a subset of SQL 99
APIs and other access methodsC++ API
Java API
Java API
JDBC
RESTful HTTP/JSON API
Supported programming languagesC++
Java
C#
C++
Erlang infonot officially supported
Go
Java
JavaScript infoNode.js
PHP
Python
Server-side scripts infoStored proceduresnoJava
Triggersnono
Partitioning methods infoMethods for storing different data on different nodesnoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneMaster-master replication
Master-slave replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Foreign keys infoReferential integritynono infoFOREIGN KEY constraints are not supported
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesACID infoTransactions are executed single-threaded within stored procedures
Concurrency infoSupport for concurrent manipulation of datayesyes infoData access is serialized by the server
Durability infoSupport for making data persistentyesyes infoSnapshots and command logging
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes
User concepts infoAccess controlnoUsers and roles with access to stored procedures

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More resources
RocksDBVoltDB
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