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DBMS > Hive vs. LevelDB vs. VelocityDB

System Properties Comparison Hive vs. LevelDB vs. VelocityDB

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Editorial information provided by DB-Engines
NameHive  Xexclude from comparisonLevelDB  Xexclude from comparisonVelocityDB  Xexclude from comparison
Descriptiondata warehouse software for querying and managing large distributed datasets, built on HadoopEmbeddable fast key-value storage library that provides an ordered mapping from string keys to string valuesA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelRelational DBMSKey-value storeGraph DBMS
Object oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score86.05
Rank#14  Overall
#9  Relational DBMS
Score2.81
Rank#89  Overall
#16  Key-value stores
Score0.07
Rank#296  Overall
#28  Graph DBMS
#16  Object oriented DBMS
Websitehive.apache.orggithub.com/­google/­leveldbvelocitydb.com
Technical documentationcwiki.apache.org/­confluence/­display/­Hive/­Homegithub.com/­google/­leveldb/­blob/­master/­doc/­index.mdvelocitydb.com/­UserGuide
DeveloperApache Software Foundation infoinitially developed by FacebookGoogleVelocityDB Inc
Initial release201220112011
Current release3.1.2, August 20191.22, May 20197.x
License infoCommercial or Open SourceOpen Source infoApache Version 2Open Source infoBSDcommercial
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaC++C#
Server operating systemsAll OS with a Java VMIllumos
Linux
OS X
Windows
Any that supports .NET
Data schemeyesschema-freeyes
Typing infopredefined data types such as float or dateyesnoyes
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.nono
Secondary indexesyesnoyes
SQL infoSupport of SQLSQL-like DML and DDL statementsnono
APIs and other access methodsJDBC
ODBC
Thrift
C++ API
Go
Java infoThird party binding
Node.js infoThird party binding
Python infoThird party binding
.Net
Supported programming languagesC++
Java
PHP
Python
C++
Go
.Net
Server-side scripts infoStored proceduresyes infouser defined functions and integration of map-reducenono
TriggersnonoCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesShardingnoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factornone
MapReduce infoOffers an API for user-defined Map/Reduce methodsyes infoquery execution via MapReducenono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyes infowith automatic compression on writesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes
User concepts infoAccess controlAccess rights for users, groups and rolesnoBased on Windows Authentication

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More resources
HiveLevelDBVelocityDB
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