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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
Score2.25
Rank#115  Overall
#19  Key-value stores
Websitegithub.com/­google/­leveldb
Technical documentationgithub.com/­google/­leveldb/­blob/­main/­doc/­index.md
DeveloperGoogle
Initial release2011
Current release1.23, February 2021
License infoCommercial or Open SourceOpen Source infoBSD
Cloud-based only infoOnly available as a cloud serviceno
DBaaS offerings (sponsored links) infoDatabase as a Service

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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
Supported programming languagesC++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
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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More resources
LevelDB
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