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DBMS > SQL.JS vs. Sqrrl vs. ToroDB vs. XTDB

System Properties Comparison SQL.JS vs. Sqrrl vs. ToroDB vs. XTDB

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Editorial information provided by DB-Engines
NameSQL.JS  Xexclude from comparisonSqrrl  Xexclude from comparisonToroDB  Xexclude from comparisonXTDB infoformerly named Crux  Xexclude from comparison
Sqrrl has been acquired by Amazon and became a part of Amazon Web Services. It has been removed from the DB-Engines ranking.ToroDB seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
DescriptionPort of SQLite to JavaScriptAdaptable, secure NoSQL built on Apache AccumuloA MongoDB-compatible JSON document store, built on top of PostgreSQLA general purpose database with bitemporal SQL and Datalog and graph queries
Primary database modelRelational DBMSDocument store
Graph DBMS
Key-value store
Wide column store
Document storeDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.53
Rank#252  Overall
#116  Relational DBMS
Score0.11
Rank#343  Overall
#46  Document stores
Websitesql.js.orgsqrrl.comgithub.com/­torodb/­servergithub.com/­xtdb/­xtdb
www.xtdb.com
Technical documentationsql.js.org/­documentation/­index.htmlwww.xtdb.com/­docs
DeveloperAlon Zakai infoenhancements implemented by othersAmazon infooriginally Sqrrl Data, Inc.8KdataJuxt Ltd.
Initial release2012201220162019
Current release1.19, September 2021
License infoCommercial or Open SourceOpen SourcecommercialOpen Source infoAGPL-V3Open Source infoMIT License
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaScriptJavaJavaClojure
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)LinuxAll OS with a Java 7 VMAll OS with a Java 8 (and higher) VM
Linux
Data schemeyesschema-freeschema-freeschema-free
Typing infopredefined data types such as float or dateyesyesyes infostring, integer, double, boolean, date, object_idyes, extensible-data-notation format
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 indexesyesyes
SQL infoSupport of SQLyes infoSQL-92 is not fully supportednolimited SQL, making use of Apache Calcite
APIs and other access methodsJavaScript APIAccumulo Shell
Java API
JDBC
ODBC
RESTful HTTP API
Thrift
HTTP REST
JDBC
Supported programming languagesJavaScriptActionscript
C infousing GLib
C#
C++
Cocoa
Delphi
Erlang
Go
Haskell
Java
JavaScript
OCaml
Perl
PHP
Python
Ruby
Smalltalk
Clojure
Java
Server-side scripts infoStored proceduresnonono
Triggersnononono
Partitioning methods infoMethods for storing different data on different nodesnoneSharding infomaking use of HadoopShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesnoneselectable replication factor infomaking use of HadoopSource-replica replicationyes, each node contains all data
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate Consistency infoDocument store kept consistent with combination of global timestamping, row-level transactions, and server-side consistency resolution.Eventual Consistency
Immediate Consistency
Foreign keys infoReferential integrityyesnonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDAtomic updates per row, document, or graph entitynoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentno infoexcept by serializing a db to a fileyesyesyes, flexibel persistency by using storage technologies like Apache Kafka, RocksDB or LMDB
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes
User concepts infoAccess controlnoCell-level Security, Data-Centric Security, Role-Based Access Control (RBAC), Attribute-Based Access Control (ABAC)Access rights for users and roles

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More resources
SQL.JSSqrrlToroDBXTDB infoformerly named Crux
DB-Engines blog posts

New kids on the block: database management systems implemented in JavaScript
1 December 2014, Matthias Gelbmann

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