| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
Home -> Community -> Usenet -> comp.databases.theory -> Re: why hierarchy?
JOG wrote:
> Neo wrote:
> > > What if I wanted to record a different sentence - "A person called
> > > John is friends with Frank within the remit of Work"?
> > > (i.e. they aren't friends outside of workhours)
> >
> > (new 'john 'person)
> > (new 'frank 'person)
> > (new 'at 'preposition)
> > (new 'work)
> > (create john (create friend at work) frank)
> > (create frank (select friend at work) john)
> >
>
> I am unclear what you have done here not being familiar with your
> syntax. Could you draw the resulting structure in ascii for me to
> clarify the results of these instructions.
How about little imagination? Here is the famous "find all emps who earn more than their managers":
create `emp
create `mgr
create 'earn create 'more create 'who
![]() |
![]() |