DBMS > JSqlDb vs. LokiJS vs. Sadas Engine

System Properties Comparison JSqlDb vs. LokiJS vs. Sadas Engine

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Editorial information provided by DB-Engines
Name	JSqlDb  Xexclude from comparison	LokiJS  Xexclude from comparison	Sadas Engine  Xexclude from comparison
	JSqlDB seems to be discontinued. Therefore it is excluded from the DB-Engines ranking.
Description	JavaScript Query Language Database, stores JavaScript objects and primitives	In-memory JavaScript DBMS	SADAS Engine is a columnar DBMS specifically designed for high performance in Data warehouse environments
Primary database model	Document store Object oriented DBMS	Document store	Relational DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart		Score 0.57 Rank #226   Overall #34   Document stores	Score 0.00 Rank #360   Overall #156   Relational DBMS
Website	jsqldb.org (offline)	github.com/­techfort/­LokiJS	www.sadasengine.com
Technical documentation		techfort.github.io/­LokiJS	www.sadasengine.com/­index.php/­downloads/­documentation-columnar-db
Developer	Konrad von Backstrom		SADAS s.r.l.
Initial release	2018	2014	2006
Current release	0.8, December 2018		8.0
License Commercial or Open Source	Open Source	Open Source	commercial free trial version available
Cloud-based only Only available as a cloud service	no	no	no
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Implementation language		JavaScript	C++
Server operating systems	Linux macOS Windows	server-less, requires a JavaScript environment (browser, Node.js)	AIX Linux Windows
Data scheme	schema-free	schema-free	yes
Typing predefined data types such as float or date	no	no	yes
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	no	no
Secondary indexes	no	yes via views	yes
SQL Support of SQL	no	no	yes
APIs and other access methods		JavaScript API	JDBC ODBC Proprietary protocol
Supported programming languages	JavaScript	JavaScript	.Net C C# C++ Groovy Java PHP Python
Server-side scripts Stored procedures	functions in JavaScript	View functions in JavaScript	no
Triggers	no	yes	no
Partitioning methods Methods for storing different data on different nodes	none	none	horizontal partitioning
Replication methods Methods for redundantly storing data on multiple nodes	none	none	none
MapReduce Offers an API for user-defined Map/Reduce methods	no	yes	no
Consistency concepts Methods to ensure consistency in a distributed system		none	Immediate Consistency
Foreign keys Referential integrity	no	no	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data		no atomic operations within a single collection possible
Concurrency Support for concurrent manipulation of data			yes
Durability Support for making data persistent	yes using RocksDB	yes Serialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.		yes	yes managed by 'Learn by Usage'
User concepts Access control		no	Access rights for users, groups and roles according to SQL-standard
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	JSqlDb	LokiJS	Sadas Engine
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