DBMS > OpenQM vs. Oracle Rdb vs. Solr

System Properties Comparison OpenQM vs. Oracle Rdb vs. Solr

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Editorial information provided by DB-Engines

Name

Description

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

A widely used distributed, scalable search engine based on Apache Lucene

Primary database model

Multivalue DBMS

Relational DBMS

Search engine

Secondary database models

Spatial DBMS

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

Score	0.58
Rank	#262	Overall
	#10	Multivalue DBMS

Score	1.52
Rank	#170	Overall
	#80	Relational DBMS

Score	47.28
Rank	#24	Overall
	#3	Search engines

Website

www.openqm.com

www.oracle.com/technetwork/database/database-technologies/rdb/overview/index.html

lucene.apache.org/solr

Technical documentation

www.openqm.com/support/documentation

lucene.apache.org/solr/resources.html

Developer

Martin Phillips

Oracle, originally developed by Digital Equipment Corporation (DEC)

Apache Software Foundation

Initial release

1993

1984

2006

Current release

3.4-12

7.4.1.1, 2021

9.1.1, January 2023

License

Commercial or Open Source

Open Source

GPLv2, extended commercial license available

commercial

Open Source

Apache Version 2

Cloud-based only

Only available as a cloud service

DBaaS offerings (sponsored links)

Database as a Service

Providers of DBaaS offerings, please contact us to be listed.

Implementation language

Java

Server operating systems

AIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows

HP Open VMS

All OS with a Java VM

runs as a servlet in servlet container (e.g. Tomcat, Jetty is included)

Data scheme

yes

with some exceptions

Flexible Schema (defined schema, partial schema, schema free)

yes

Dynamic Fields enables on-the-fly addition of new fields

Typing

predefined data types such as float or date

yes

supports customizable data types and automatic typing

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.

yes

Secondary indexes

yes

All search fields are automatically indexed

SQL

Support of SQL

yes

Solr Parallel SQL Interface

APIs and other access methods

Java API
RESTful HTTP/JSON API

Supported programming languages

.Net
Basic
C
Java
Objective C
PHP
Python

.Net
Erlang
Java
JavaScript
any language that supports sockets and either XML or JSON
Perl
PHP
Python
Ruby
Scala

Server-side scripts

Stored procedures

yes

Java plugins

Triggers

yes

User configurable commands triggered on index changes

Partitioning methods

Methods for storing different data on different nodes

yes

Sharding

Replication methods

Methods for redundantly storing data on multiple nodes

yes

MapReduce

Offers an API for user-defined Map/Reduce methods

spark-solr: github.com/lucidworks/spark-solr and streaming expressions to reduce

Consistency concepts

Methods to ensure consistency in a distributed system

Immediate Consistency

Eventual Consistency

Foreign keys

Referential integrity

yes

Transaction concepts

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

ACID

yes, on a single node

optimistic locking

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

Access rights can be defined down to the item level

yes

More information provided by the system vendor

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More resources

DB-Engines blog posts

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12 January 2016, Paul Andlinger

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2 July 2014, Paul Andlinger

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Recent citations in the news

OpenQM
3 June 2018, dbdb.io

OpenQM Database | Bundled with AccuTerm | High Performance Database
2 June 2020, uniware.com.au

Zumasys Acquires Total Computing Solutions
5 May 2020, zumasys.com

Revision OpenQM
29 March 2021, dbdb.io

mvbasic/Extension Guide.md at develop · mvextensions/mvbasic
17 December 2019, github.com

provided by Google News

Oracle Adds New AI-Enabling Features To MySQL HeatWave
23 March 2023, Forbes

provided by Google News

2023-03-21 | TSXV:SOLR | Press Release | Solar Alliance Energy Inc
21 March 2023, Stockhouse

2023-03-06 | TSXV:SOLR | Press Release | Solar Alliance Energy Inc
6 March 2023, Stockhouse

'Ofgem's spending on consultants since start of crisis amounts to £32m' - Energy Live News
13 March 2023, Energy Made Easy

As Clean Energy Rebounds, Check Out SOLR
31 May 2022, ETF Trends

How to import data into Apache Solr
17 May 2022, TechRepublic

provided by Google News

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