Why not physical backup be able to restore logical tables ?

DBA's are used to the perspective of physical & logical backups for a long time .
I wonder why should it not be able to do a logical restore a single table from a physical backup ? It will be great to have this possibility.
Is this is design constraint that can be changed by Oracle ?
-Shekar

This is not a design constraint.
The physical backup is of all the physical components of a database which are interpreted by the server software to create the logical representation.
A physical backup is meant to be restored completely whereas a logical backup can be restored as of requirement.
It is not desirable to be able to restore a single table from physical backup as table is a logical representation of data. Till such time that the physical data is not interpreted by Server software it is just bytes on the disk.
So, if we want to restore a table from physical backup we will need a running instance to interpret the data and this will be more time consuming than having it extracted from a logical set.
If our system has not gone down and we want to restore the table just to a previous state, then (Oracle 10g) we can do it easily without taking the help of physical backups, through flashbacks.
These are my views, perhaps others can join in and we can discuss this out.

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