DBMS > EventStoreDB vs. OpenMLDB vs. SWC-DB

System Properties Comparison EventStoreDB vs. OpenMLDB vs. SWC-DB

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Editorial information provided by DB-Engines

Name

Description

Industrial-strength, open-source database solution built from the ground up for event sourcing.

An open-source machine learning database that provides a feature platform for training and inference

A high performance, scalable Wide Column DBMS

Primary database model

Event Store

Time Series DBMS

Wide column store

Secondary database models

Relational DBMS

Time Series DBMS

DB-Engines Ranking measures the popularity of database management systems
Trend Chart

Score	1.19
Rank	#173	Overall
	#1	Event Stores

Score	0.10
Rank	#359	Overall
	#36	Time Series DBMS

Score	0.08
Rank	#364	Overall
	#13	Wide column stores

Website

www.eventstore.com

openmldb.ai

github.com/kashirin-alex/swc-db
www.swcdb.org

Technical documentation

developers.eventstore.com

openmldb.ai/docs/zh/main

Developer

Event Store Limited

4 Paradigm Inc.

Alex Kashirin

Initial release

2012

2020

Current release

21.2, February 2021

2024-2 February 2024

0.5, April 2021

License

Commercial or Open Source

Open Source

GPL V3

Cloud-based only

Only available as a cloud service

DBaaS offerings (sponsored links)

Database as a Service

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Implementation language

C++, Java, Scala

C++

Server operating systems

Linux
Windows

Linux

Data scheme

Fixed schema

schema-free

Typing

predefined data types such as float or date

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.

Secondary indexes

yes

SQL

Support of SQL

yes

SQL-like query language

APIs and other access methods

JDBC
SQLAlchemy

Proprietary protocol
Thrift

Supported programming languages

C++
Go
Java
Python
Scala

C++

Server-side scripts

Stored procedures

Triggers

Partitioning methods

Methods for storing different data on different nodes

horizontal partitioning

Sharding

Replication methods

Methods for redundantly storing data on multiple nodes

Source-replica replication

MapReduce

Offers an API for user-defined Map/Reduce methods

Consistency concepts

Methods to ensure consistency in a distributed system

Immediate Consistency

Foreign keys

Referential integrity

Transaction concepts

Support to ensure data integrity after non-atomic manipulations of data

Concurrency

Support for concurrent manipulation of data

yes

Durability

Support for making data persistent

yes

In-memory capabilities

Is there an option to define some or all structures to be held in-memory only.

yes

User concepts

Access control

fine grained access rights according to SQL-standard

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