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DBMS > H2 vs. RocksDB vs. SQL.JS

System Properties Comparison H2 vs. RocksDB vs. SQL.JS

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Editorial information provided by DB-Engines
NameH2  Xexclude from comparisonRocksDB  Xexclude from comparisonSQL.JS  Xexclude from comparison
DescriptionFull-featured RDBMS with a small footprint, either embedded into a Java application or used as a database server.Embeddable persistent key-value store optimized for fast storage (flash and RAM)Port of SQLite to JavaScript
Primary database modelRelational DBMSKey-value storeRelational DBMS
Secondary database modelsSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score8.22
Rank#50  Overall
#32  Relational DBMS
Score4.00
Rank#84  Overall
#11  Key-value stores
Score0.57
Rank#248  Overall
#114  Relational DBMS
Websitewww.h2database.comrocksdb.orgsql.js.org
Technical documentationwww.h2database.com/­html/­main.htmlgithub.com/­facebook/­rocksdb/­wikisql.js.org/­documentation/­index.html
DeveloperThomas MuellerFacebook, Inc.Alon Zakai infoenhancements implemented by others
Initial release200520132012
Current release2.2.220, July 20238.11.4, April 2024
License infoCommercial or Open SourceOpen Source infodual-licence (Mozilla public license, Eclipse public license)Open Source infoBSDOpen Source
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaC++JavaScript
Server operating systemsAll OS with a Java VMLinuxserver-less, requires a JavaScript environment (browser, Node.js)
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.nonono
Secondary indexesyesno
SQL infoSupport of SQLyesnoyes infoSQL-92 is not fully supported
APIs and other access methodsJDBC
ODBC
C++ API
Java API
JavaScript API
Supported programming languagesJavaC
C++
Go
Java
Perl
Python
Ruby
JavaScript
Server-side scripts infoStored proceduresJava Stored Procedures and User-Defined Functionsnono
Triggersyesno
Partitioning methods infoMethods for storing different data on different nodesnonehorizontal partitioningnone
Replication methods infoMethods for redundantly storing data on multiple nodesWith clustering: 2 database servers on different computers operate on identical copies of a databaseyesnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistencynone
Foreign keys infoReferential integrityyesnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDyesACID
Concurrency infoSupport for concurrent manipulation of datayes, multi-version concurrency control (MVCC)yes
Durability infoSupport for making data persistentyesyesno infoexcept by serializing a db to a file
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyes
User concepts infoAccess controlfine grained access rights according to SQL-standardnono

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3rd partiesSpeedb: A high performance RocksDB-compliant key-value store optimized for write-intensive workloads.
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More resources
H2RocksDBSQL.JS
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