Sorry, I was trying to use an example to explain that in SQL one would have a cartesian join if you have
select t1.* from t1, t2 but in AQL the examples I have seen suggest that select o from c1, o1 would be an implict join I'll leave the AQL discussions to someone more versed with it :-) > ------------------------------ > > Message: 4 > Date: Wed, 25 Feb 2009 09:08:28 +1100 > From: <John.Ryan-Brown at csiro.au> > Subject: RE: AQL queries and one-many relationships > To: <openehr-technical at openehr.org> > Message-ID: > ? ? ? ?<8C3F2174B3FE2B408CB380513186BEC45752819AE7 at > EXNSW-MBX03.nexus.csiro.au> > > Content-Type: text/plain; charset="iso-8859-1" > > Thanks for your respose Greg. > > I'm not really concerned about the details of specific archetypes - I just > used the ubiquitous blood pressure one because that's the one used in a lot > of the example documentation. > > My question is more about the how AQL should handle querying data that > conforms to archetypes that contain one or more one-to-many relationships. > > John >
