| Editorial information provided by DB-Tools |
| System |
| Name |
CouchDB |
IBM DB2 |
| Version |
3.3.5 |
Last Stable Release 11.1 , released in april 2016 |
| Drawbacks |
1 Does not have capabilities present in an RDF data store e.g does not support SparQL |
high license costs. Applicable for transaction systems in large enterprises |
| Advantages |
NA |
ACID compliant. |
| Languages Supported |
.net, C#, Javascript |
C
C#
C++
Cobol
Delphi
Fortran
Java
JCL
Perl
PHP
Python
Ruby
Visual Basic |
| Website |
apache.couchdb.org |
www.ibm.com/analytics/us/en/db2 |
| XML Support |
NA |
yes |
| JSON Support |
yes |
yes |
| Brief description |
Open Source Transactional database with native graph storage and processing |
IBM Db2 was the name introduced by IBM in 1983. The names DB2(tm) and Db2(tm) refer to database-server products developed by IBM.
IBM Researchers invented Relational model and SQL Format. |
| Database Model |
Property Graph |
Primarily a relational database |
| Technical Documentation |
docs.microsoft.com/en-us/azure/cosmos-db |
www.ibm.com/support/knowledgecenter/SSEPGG |
| License |
Community license can be run on 1 node.Enterprise License supports multi-node cluster deployment |
Commercial |
| Cloud-based / SaaS |
Amazon AMI available, On Prem can be installed |
Available in AWS, Azure Clouds. Available as a SaaS option in IBM Cloud |
| Implementation Language |
Java API |
C,C++ |
| Operating System Supported |
Linux , OS X, Windows |
Linux
Windows
|
| Options for Integration / Access API |
Rest API |
JSON Query,
Xquery,
JDBC,
ODBC |
| Consistency |
NA |
Highly Consistent |
| Foreign Keys |
No |
Yes |
| Streaming Support |
No |
No |
| Analytics Support |
No |
Need to buy Netezza |
| Data Storage Schema |
Key Value Store presented as Document DB |
Relational Database |
| Notable Users |
-- |
Most of the Fortune 500 Companies |
| Key Differentiator |
-- |
Go To Database for IBM Mainframe Systems |
| Concurrency |
-- |
Yes |
| Partitioning |
-- |
No |
| Replication |
-- |
Yes |
| Secondary Indexes |
-- |
Yes |
| SchemaLess |
-- |
No |
| SQL Query |
-- |
Yes |
