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DBMS > LevelDB vs. RisingWave vs. SQL.JS vs. Tkrzw

System Properties Comparison LevelDB vs. RisingWave vs. SQL.JS vs. Tkrzw

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Editorial information provided by DB-Engines
NameLevelDB  Xexclude from comparisonRisingWave  Xexclude from comparisonSQL.JS  Xexclude from comparisonTkrzw infoSuccessor of Tokyo Cabinet and Kyoto Cabinet  Xexclude from comparison
DescriptionEmbeddable fast key-value storage library that provides an ordered mapping from string keys to string valuesA distributed RDBMS for stream processing, wire-compatible with PostgreSQLPort of SQLite to JavaScriptA concept of libraries, allowing an application program to store and query key-value pairs in a file. Successor of Tokyo Cabinet and Kyoto Cabinet
Primary database modelKey-value storeRelational DBMSRelational DBMSKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.35
Rank#111  Overall
#19  Key-value stores
Score0.58
Rank#242  Overall
#111  Relational DBMS
Score0.53
Rank#252  Overall
#116  Relational DBMS
Score0.00
Rank#383  Overall
#60  Key-value stores
Websitegithub.com/­google/­leveldbwww.risingwave.com/­databasesql.js.orgdbmx.net/­tkrzw
Technical documentationgithub.com/­google/­leveldb/­blob/­main/­doc/­index.mddocs.risingwave.com/­docs/­current/­introsql.js.org/­documentation/­index.html
DeveloperGoogleRisingWave LabsAlon Zakai infoenhancements implemented by othersMikio Hirabayashi
Initial release2011202220122020
Current release1.23, February 20211.2, September 20230.9.3, August 2020
License infoCommercial or Open SourceOpen Source infoBSDOpen Source infoApache Version 2.0Open SourceOpen Source infoApache Version 2.0
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++RustJavaScriptC++
Server operating systemsIllumos
Linux
OS X
Windows
Docker
Linux
macOS
server-less, requires a JavaScript environment (browser, Node.js)Linux
macOS
Data schemeschema-freeyesyesschema-free
Typing infopredefined data types such as float or datenoStandard SQL-types and JSONyesno
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.nononono
Secondary indexesnoyes
SQL infoSupport of SQLnoyesyes infoSQL-92 is not fully supportedno
APIs and other access methodsJDBC
PostgreSQL wire protocol
JavaScript API
Supported programming languagesC++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
Go
Java
JavaScript (Node.js)
Python
JavaScriptC++
Java
Python
Ruby
Server-side scripts infoStored proceduresnoUDFs in Python or Javanono
Triggersnononono
Partitioning methods infoMethods for storing different data on different nodesnonenonenone
Replication methods infoMethods for redundantly storing data on multiple nodesnonenonenone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencynoneImmediate Consistency
Foreign keys infoReferential integritynonoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyes infowith automatic compression on writesyesno infoexcept by serializing a db to a fileyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyes infousing specific database classes
User concepts infoAccess controlnoUsers and Rolesnono

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More resources
LevelDBRisingWaveSQL.JSTkrzw infoSuccessor of Tokyo Cabinet and Kyoto Cabinet
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