DBMS > IBM Db2 vs. Informix vs. Ingres vs. Memcached

System Properties Comparison IBM Db2 vs. Informix vs. Ingres vs. Memcached

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Editorial information provided by DB-Engines

Name

Description

Common in IBM host environments, 2 different versions for host and Windows/Linux

A secure embeddable database from IBM, positioned besides DB2 as a relatively low-cost product optimized for OLTP and Internet of Things data

Well established RDBMS

In-memory key-value store, originally intended for caching

Primary database model

Relational DBMS info

Since Version 10.5 support for JSON/BSON documents compatible with MongoDB

Relational DBMS info

Since Version 12.10 support for JSON/BSON datatypes compatible with MongoDB

Relational DBMS

Key-value store

Secondary database models

Document store
RDF store info

in DB2 LUW (Linux, Unix, Windows)

Document store
Time Series DBMS info

with Informix TimeSeries Extension

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

Score	171.35
Rank	#6	Overall
	#5	Relational DBMS

Score	25.51
Rank	#26	Overall
	#15	Relational DBMS

Score	5.80
Rank	#55	Overall
	#31	Relational DBMS

Score	24.46
Rank	#28	Overall
	#4	Key-value stores

Website

www.ibm.com/analytics/db2

www.ibm.com/products/informix

www.actian.com/data-management/ingres-sql-rdbms

www.memcached.org

Technical documentation

www.ibm.com/support/knowledgecenter/SSEPGG

informix.hcldoc.com
www.ibm.com/support/knowledgecenter/SSGU8G/welcomeIfxServers.html

docs.actian.com/ingres

github.com/memcached/memcached/wiki

Developer

IBM

IBM, HCL Technologies info

Effective May 1st, 2017, HCL took on development, technical support, and product management teams, and works jointly with IBM on product strategy, marketing, and sales.

Actian Corporation

Danga Interactive info

originally developed by Brad Fitzpatrick for LiveJournal

Initial release

1983

host version

1984

1974

originally developed at University Berkely in early 1970s

2003

Current release

12.1, October 2016

14.10, March 2019

11.0, April 2017

1.5.12, November 2018

License

Commercial or Open Source

commercial info

free version is available

commercial info

free developer edition available

commercial

Open Source info

BSD license

Cloud-based only info

Only available as a cloud service

DBaaS offerings (sponsored links) info

Database as a Service

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

Implementation language

C and C++

C, C++ and Java

Server operating systems

AIX
HP-UX
Linux
Solaris
Windows
z/OS

AIX
HP-UX
Linux
macOS
Solaris
Windows

AIX
HP Open VMS
HP-UX
Linux
Solaris
Windows

FreeBSD
Linux
OS X
Unix
Windows

Data scheme

yes

schema-free

Typing

predefined data types such as float or date

yes

Since Version 12.10 support for JSON/BSON datatypes

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.

but tools for importing/exporting data from/to XML-files available

Secondary indexes

yes

SQL

Support of SQL

yes

APIs and other access methods

ADO.NET
JDBC
JSON style queries info

MongoDB compatible
ODBC
XQuery

JDBC
JSON API info

MongoDB compatible
MQTT (Message Queue Telemetry Transport)
ODBC
RESTful HTTP API

.NET Client API
JDBC
ODBC
proprietary protocol (OpenAPI)

Proprietary protocol

Supported programming languages

C
C#
C++
Cobol
Delphi
Fortran
Java
Perl
PHP
Python
Ruby
Visual Basic

.Net
C
C++
Java
JavaScript (Node.js)
PHP
Python
Ruby

.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby

Server-side scripts info

Stored procedures

yes

Triggers

yes

Partitioning methods info

Methods for storing different data on different nodes

Sharding

only with Windows/Unix/Linux Version

Sharding

horizontal partitioning info

Ingres Star to access multiple databases simultaneously

none

Replication methods info

Methods for redundantly storing data on multiple nodes

yes

with separate tools (MQ, InfoSphere)

Master-master replication
Master-slave replication

Ingres Replicator

none

Repcached, a Memcached patch, provides this functionallity

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

Transaction concepts info

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

ACID

Concurrency info

Support for concurrent manipulation of data

yes

MVCC

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

fine grained access rights according to SQL-standard

Users with fine-grained authentication, authorization, and auditing controls

fine grained access rights according to SQL-standard

yes

using SASL (Simple Authentication and Security Layer) protocol

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