Talk:Comparison of object–relational database management systems

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Why does the link entitled "object-relational database management systems" link to the page "Object database"??? This seems nonsensical, since I would expect something object-relational database management systems........

type inheritance

Does postgreSQL have type inheritance? There is no documentation available on the same.

Oracle supports calling supertype methods as from 11g (2007)

In Oracle 11g, Oracle supports calling a supertype method (Oracle Database New Features Guide 11g (Release 11.1): (http://www.oracle.com/pls/db111/to_pdf?pathname=server.111/b28279.pdf, http://www.oracle.com/pls/db111/to_toc?pathname=server.111/b28279/toc.htm) —Preceding unsigned comment added by 87.195.43.161 (talk) 21:34, 3 January 2008 (UTC)[reply]

"1.1.11.5 Method Invocation Scoping Operator A subtype usually adds specific data attributes to its more generic supertype. Typically, a NOT FINAL member procedure, for example, Show_Attributes(), is implemented at each level in the type hierarchy. It is natural to implement this at one level by reusing the implementation at the parent level and by adding new code just for the attributes of the subtype. Oracle Database 11g supports the ANSI SQL generalized-invocation syntax to allow the following: (<type-instance> AS <type-name>).<method-name>." —Preceding unsigned comment added by 87.195.43.161 (talk) 21:32, 3 January 2008 (UTC)[reply]

Other RDBMS's???

Why just those 3 (Oracle, OpenLink Virtuoso, PostgreSQL)? Why not MS SQL Server, IBM DB2, and many many other databases? Selection of just those 3 seems very arbitrary.