<s>
This	O
is	O
a	O
comparison	B-General_Concept
of	I-General_Concept
object	I-General_Concept
–	I-General_Concept
relational	I-General_Concept
database	I-General_Concept
management	I-General_Concept
systems	I-General_Concept
(	O
ORDBMSs	O
)	O
.	O
</s>
<s>
Each	O
system	O
has	O
at	O
least	O
some	O
features	O
of	O
an	O
object	B-General_Concept
–	I-General_Concept
relational	I-General_Concept
database	I-General_Concept
;	O
they	O
vary	O
widely	O
in	O
their	O
completeness	O
and	O
the	O
approaches	O
taken	O
.	O
</s>
<s>
Name	O
Vendor	O
License	B-License
OS	B-General_Concept
Notes	O
Adaptive	B-Application
Server	I-Application
Enterprise	I-Application
SAP	B-Application
Proprietary	B-Application
Cross-platform	O
Caché	B-Language
InterSystems	B-Application
Proprietary	B-Application
Cross-platform	O
CUBRID	B-Application
NHN	O
Corporation	O
GPL/BSD	O
Linux	O
,	O
Windows	O
IBM	B-Application
Db2	I-Application
IBM	O
Proprietary	B-Application
Cross-platformGigaSpacesGigaSpacesApache-2.0	O
or	O
ProprietaryCross-platform	O
Greenplum	O
Database	O
Greenplum	O
division	O
of	O
EMC	O
Corporation	O
Proprietary	B-Application
?	O
</s>
<s>
Uses	O
PostgreSQL	B-Application
codebase	O
Informix	B-Application
IBM	O
Proprietary	B-Application
Cross-platform	O
Microsoft	B-Application
SQL	I-Application
Server	I-Application
Microsoft	O
Corporation	O
Proprietary	B-Application
Windows	O
,	O
Linux	O
Supports	O
data	O
objects	O
in	O
.NET	O
languages	O
OpenEdge	B-Application
Advanced	I-Application
Business	I-Application
Language	I-Application
(	O
formerly	O
Progress	B-Application
4GL	I-Application
)	O
Progress	O
Software	O
Corporation	O
Proprietary	B-Application
Cross-platform	O
Oracle	B-General_Concept
Database	I-General_Concept
Oracle	B-Application
Corporation	I-Application
Proprietary	B-Application
Linux	O
,	O
Windows	O
,	O
Unix	O
PostgreSQL	B-Application
PostgreSQL	B-Application
Global	O
Development	O
Group	O
PostgreSQL	B-Application
License	I-Application
Cross-platform	O
Virtuoso	B-Application
Universal	I-Application
Server	I-Application
OpenLink	O
Software	O
GPLv2	O
or	O
proprietary	B-Application
Cross-platform	O
VMDS	B-Application
(	O
Version	O
Managed	O
Data	O
Store	O
)	O
GE	O
Energy	O
,	O
a	O
division	O
of	O
General	O
Electric	O
Proprietary	B-Application
?	O
</s>
<s>
Type	O
Method	B-Language
Type	B-Language
inheritance	I-Language
Table	O
inheritance	B-Language
CUBRID	B-Application
Oracle	B-General_Concept
No	O
private	O
methods	O
,	O
no	O
way	O
to	O
call	O
super	O
method	B-Language
from	O
a	O
child	O
.	O
</s>
