DBMS > MySQL vs. OpenQM

System Properties Comparison MySQL vs. OpenQM

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Editorial information provided by DB-Engines

Name

Description

Widely used open source RDBMS

QpenQM is a high-performance, self-tuning, multi-value DBMS

Primary database model

Relational DBMS info

Key/Value like access via memcached API

Multivalue DBMS

Secondary database models

Document store

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

Score	1241.64
Rank	#2	Overall
	#2	Relational DBMS

Score	0.39
Rank	#249	Overall
	#10	Multivalue DBMS

Website

www.mysql.com

www.openqm.com

Technical documentation

dev.mysql.com/doc

www.openqm.com/support/documentation

Developer

Oracle

since 2010, originally MySQL AB, then Sun

Martin Phillips

Initial release

1995

1993

Current release

8.0.22, 2020

3.4-12

License

Commercial or Open Source

Open Source info

GPL version 2. Commercial licenses with extended functionallity are available

Open Source info

GPLv2, extended commercial license available

Cloud-based only info

Only available as a cloud service

DBaaS offerings (sponsored links) info

Database as a Service

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Implementation language

C and C++

Server operating systems

FreeBSD
Linux
OS X
Solaris
Windows

AIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows

Data scheme

yes

with some exceptions

Typing

predefined data types such as float or date

yes

XML support info

Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.

yes

Secondary indexes

yes

SQL

Support of SQL

yes

with proprietary extensions

APIs and other access methods

ADO.NET
JDBC
ODBC
Proprietary native API

Supported programming languages

Ada
C
C#
C++
D
Delphi
Eiffel
Erlang
Haskell
Java
JavaScript (Node.js)
Objective-C
OCaml
Perl
PHP
Python
Ruby
Scheme
Tcl

.Net
Basic
C
Java
Objective C
PHP
Python

Server-side scripts info

Stored procedures

yes

proprietary syntax

yes

Triggers

yes

Partitioning methods info

Methods for storing different data on different nodes

horizontal partitioning, sharding with MySQL Cluster or MySQL Fabric

yes

Replication methods info

Methods for redundantly storing data on multiple nodes

Multi-source replication
Source-replica replication

yes

MapReduce

Offers an API for user-defined Map/Reduce methods

Consistency concepts info

Methods to ensure consistency in a distributed system

Immediate Consistency

Foreign keys info

Referential integrity

yes

not for MyISAM storage engine

Transaction concepts info

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

ACID

not for MyISAM storage engine

ACID

Concurrency info

Support for concurrent manipulation of data

yes

table locks or row locks depending on storage engine

yes

Durability info

Support for making data persistent

yes

In-memory capabilities info

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

yes

User concepts info

Access control

Users with fine-grained authorization concept info

no user groups or roles

Access rights can be defined down to the item level

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