Re: object oriented vs object relational
From: James <jraustin1_at_hotmail.com>
Date: 8 Jun 2002 15:56:26 -0700
Message-ID: <a6e74506.0206081456.6eca60e1_at_posting.google.com>
ToolBox [StorageBox]
.Capacity
->50 lb
TopDrawer
Date: 8 Jun 2002 15:56:26 -0700
Message-ID: <a6e74506.0206081456.6eca60e1_at_posting.google.com>
> > generic code to copy any data structure of arbitrary complexity > > In a purely relational database: > UPDATE some_relation SET some_attribute = some_value_of_arbitrary_complexity;
Below is an example of an arbitrary data structure where
"." is a property
-> is a reference to an object
[] is object's class
() is object's quantity
Corvette [Car]
.Mfg
->GM
.Colors
->Silver
->Gray
Passengers Fldr
->Mary
John [Person]
.Age ->32 yr .Friends ->John ->Bob
ToolBox [StorageBox]
.Capacity
->50 lb
TopDrawer
->ScrewDriver(3) ->Plier(2) BottomDrawer ->Hammer
For more details see:
www.xdb1.com/Benchmark/6.asp
www.xdb1.com/HowTo/CopyObj.asp
Received on Sun Jun 09 2002 - 00:56:26 CEST