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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
Database modelKey-value store
DB-Engines Ranking measures the popularity of database management systems
Trend Chart
Score1.97
Rank#88  Overall
#15  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 Commercial or Open SourceOpen Source BSD
Cloud-based Only available as a cloud serviceno
Implementation languageC++
Server operating systemsIllumos
Linux
OS X
Windows
Data schemeschema-free
Typing predefined data types such as float or dateno
XML support Some 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 Support of (almost full) SQL standard (DML, DDL and DCL statements)no
APIs and other access methodsC++ API
Go
Java Third party binding
Node.js Third party binding
Python Third party binding
Supported programming languagesC++
Go
Server-side scripts Stored proceduresno
Triggersno
Partitioning methods Methods for storing different data on different nodesnone
Replication methods Methods for redundantly storing data on multiple nodesnone
MapReduce Offers an API for user-defined Map/Reduce methodsno
Consistency concepts Methods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys Referential integrityno
Transaction concepts Support to ensure data integrity after non-atomic manipulations of datano
Concurrency Support for concurrent manipulation of datayes
Durability Support for making data persistentyes with automatic compression on writes
User concepts Access controlno

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More resources
LevelDB
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