DBMS > Dgraph vs. LokiJS vs. Percona Server for MySQL

System Properties Comparison Dgraph vs. LokiJS vs. Percona Server for MySQL

Please select another system to include it in the comparison.

Editorial information provided by DB-Engines
Name	Dgraph  Xexclude from comparison	LokiJS  Xexclude from comparison	Percona Server for MySQL  Xexclude from comparison
Description	Distributed and scalable native Graph DBMS	In-memory JavaScript DBMS	Enhanced drop-in replacement for MySQL based on XtraDB or TokuDB storage engines with improved performance and additional diagnostic and management features.
Primary database model	Graph DBMS	Document store	Relational DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 1.38 Rank #145   Overall #11   Graph DBMS	Score 0.57 Rank #226   Overall #34   Document stores	Score 2.59 Rank #113   Overall #58   Relational DBMS
Website	dgraph.io	github.com/­techfort/­LokiJS	www.percona.com/­software/­mysql-database/­percona-server
Technical documentation	dgraph.io/­docs	techfort.github.io/­LokiJS	www.percona.com/­downloads/­Percona-Server-LATEST
Developer	Dgraph Labs, Inc.		Percona
Initial release	2016	2014	2008
Current release			8.0.28-20, 2022
License Commercial or Open Source	Open Source Apache 2.0	Open Source	Open Source GPL version 2
Cloud-based only Only available as a cloud service	no	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language	Go	JavaScript	C and C++
Server operating systems	Linux OS X Windows	server-less, requires a JavaScript environment (browser, Node.js)	Linux
Data scheme	schema-free	schema-free	yes
Typing predefined data types such as float or date	yes	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	yes
Secondary indexes	yes	yes via views	yes
SQL Support of SQL	no	no	yes
APIs and other access methods	GraphQL query language gRPC (using protocol buffers) API HTTP API	JavaScript API	ADO.NET JDBC ODBC
Supported programming languages	C# C++ Go Java JavaScript (Node.js) PHP Python Ruby	JavaScript	Ada C C# C++ D Eiffel Erlang Haskell Java Objective-C OCaml Perl PHP Python Ruby Scheme Tcl
Server-side scripts Stored procedures	no	View functions in JavaScript	yes
Triggers	no	yes	yes
Partitioning methods Methods for storing different data on different nodes	yes	none
Replication methods Methods for redundantly storing data on multiple nodes	Synchronous replication via Raft	none	Multi-source replication Source-replica replication XtraDB Cluster
MapReduce Offers an API for user-defined Map/Reduce methods	no	yes	no
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency	none	Immediate Consistency
Foreign keys Referential integrity	no	no	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	ACID	no atomic operations within a single collection possible	ACID
Concurrency Support for concurrent manipulation of data	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
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.		yes	yes
User concepts Access control	no Planned for future releases	no	Users with fine-grained authorization concept no user groups or roles
More information provided by the system vendor We invite representatives of system vendors to contact us for updating and extending the system information, and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.
Related products and services We invite representatives of vendors of related products to contact us for presenting information about their offerings here.
More resources
	Dgraph	LokiJS	Percona Server for MySQL
DB-Engines blog posts