DBMS > EJDB vs. LokiJS vs. Microsoft Azure AI Search vs. SAP Advantage Database Server

System Properties Comparison EJDB vs. LokiJS vs. Microsoft Azure AI Search vs. SAP Advantage Database Server

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Editorial information provided by DB-Engines
Name	EJDB  Xexclude from comparison	LokiJS  Xexclude from comparison	Microsoft Azure AI Search  Xexclude from comparison	SAP Advantage Database Server former name: Sybase ADS  Xexclude from comparison
				SAP Advantage Database Server seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
Description	Embeddable document-store database library with JSON representation of queries (in MongoDB style)	In-memory JavaScript DBMS	Search-as-a-service for web and mobile app development	Low-cost RDBMS with access to ISAM and FoxPro data structures
Primary database model	Document store	Document store	Search engine	Relational DBMS
Secondary database models			Vector DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.31 Rank #296   Overall #44   Document stores	Score 0.49 Rank #260   Overall #42   Document stores	Score 5.52 Rank #59   Overall #6   Search engines
Website	github.com/­Softmotions/­ejdb	github.com/­techfort/­LokiJS	azure.microsoft.com/­en-us/­services/­search	www.sap.com/products/advantage-database-server.html
Technical documentation	github.com/­Softmotions/­ejdb/­blob/­master/­README.md	techfort.github.io/­LokiJS	learn.microsoft.com/­en-us/­azure/­search
Developer	Softmotions		Microsoft	Sybase, SAP
Initial release	2012	2014	2015	1993
Current release			V1
License Commercial or Open Source	Open Source GPLv2	Open Source	commercial	commercial
Cloud-based only Only available as a cloud service	no	no	yes	no
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Implementation language	C	JavaScript
Server operating systems	server-less	server-less, requires a JavaScript environment (browser, Node.js)	hosted	Linux Windows
Data scheme	schema-free	schema-free	yes	yes
Typing predefined data types such as float or date	yes string, integer, double, bool, date, object_id	no	yes	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	yes
SQL Support of SQL	no	no	no	yes
APIs and other access methods	in-process shared library	JavaScript API	RESTful HTTP API	.NET Client API ADO.NET JDBC ODBC OLE DB
Supported programming languages	Actionscript C C# C++ Go Java JavaScript (Node.js) Lua Objective-C Pike Python Ruby	JavaScript	C# Java JavaScript Python	Delphi Perl PHP
Server-side scripts Stored procedures	no	View functions in JavaScript	no	yes
Triggers	no	yes	no	yes
Partitioning methods Methods for storing different data on different nodes	none	none	Sharding Implicit feature of the cloud service	none
Replication methods Methods for redundantly storing data on multiple nodes	none	none	yes Implicit feature of the cloud service	Multi-source replication CONFLICT Trigger to resolve replication conflicts Source-replica replication
MapReduce Offers an API for user-defined Map/Reduce methods	no	yes	no	no
Consistency concepts Methods to ensure consistency in a distributed system		none	Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	no typically not needed, however similar functionality with collection joins possible	no	no	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no	no atomic operations within a single collection possible	no	ACID
Concurrency Support for concurrent manipulation of data	yes Read/Write Locking		yes	yes
Durability Support for making data persistent	yes	yes Serialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.		yes	no	no caching of (temporary) tables can be configured
User concepts Access control	no	no	yes using Azure authentication	fine grained access rights according to SQL-standard
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More resources
	EJDB	LokiJS	Microsoft Azure AI Search	SAP Advantage Database Server former name: Sybase ADS
DB-Engines blog posts		New kids on the block: database management systems implemented in JavaScript 1 December 2014, Matthias Gelbmann show all
Recent citations in the news		LokiJS - A JavaScript Database 18 November 2014, iProgrammer provided by Google News	Announcing updates to Azure AI Search to help organizations build and scale generative AI applications 4 April 2024, Microsoft Microsoft and ServiceNow at Knowledge 2024: Introducing generative AI innovation 13 June 2024, Microsoft Azure OpenAI Service: Transforming legal practices with generative AI solutions 12 June 2024, Microsoft Public Preview of Azure OpenAI and AI Search in-app connectors for Logic Apps (Standard) | Azure updates 2 April 2024, Microsoft Raise the bar on AI-powered app development with Azure Database for PostgreSQL 5 June 2024, Microsoft provided by Google News	SAP Announces Q3 2023 Results: Asia Pacific and Japan View 19 October 2023, SAP News provided by Google News

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