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DBMS > LevelDB

LevelDB System Properties

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Editorial information provided by DB-Engines
NameLevelDB
DescriptionEmbeddable fast key-value storage library that provides an ordered mapping from string keys to string values
Primary database modelKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.38
Rank#84  Overall
#13  Key-value stores
Websitegithub.com/­google/­leveldb
Technical documentationgithub.com/­google/­leveldb/­blob/­master/­doc/­index.md
DeveloperGoogle
Initial release2011
Current release1.20, March 2017
License infoCommercial or Open SourceOpen Source infoBSD
Cloud-based infoOnly available as a cloud serviceno
Implementation languageC++
Server operating systemsIllumos
Linux
OS X
Windows
Data schemeschema-free
Typing infopredefined data types such as float or dateno
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 indexesno
SQL infoSupport of SQLno
APIs and other access methodsC++ API
Go
Java infoThird party binding
Node.js infoThird party binding
Python infoThird party binding
Supported programming languagesC++
Go
Server-side scripts infoStored proceduresno
Triggersno
Partitioning methods infoMethods for storing different data on different nodesnone
Replication methods infoMethods for redundantly storing data on multiple nodesnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integrityno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano
Concurrency infoSupport for concurrent manipulation of datayes
Durability infoSupport for making data persistentyes infowith automatic compression on writes
User concepts infoAccess controlno

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