Hi Abhinandan, it's just the same outer join you'd do in Oracle, see:
http://www.postgresql.org/docs/9.1/static/tutorial-join.html Bèrto On 6 December 2011 16:57, Abhinandan Raghavan <abhinandan.ragha...@unige.ch>wrote: > Hi, > > I'm looking to frame an SQL statement in Postgres for what's explained in > the attached image. > > The original table is at the top and is called NAV (Short for Name, > Attribute, Value). I want to create a view (NWHA_View) involving values > from within (presumably from a self join). I would've normally created a > view in the following way: > > > SELECT A.NAME <http://a.name/>, > A.VALUE AS WEIGHT, > B.VALUE AS HEIGHT, > C.VALUE AS AGE > > FROM NAV A, > NAV B, > NAV C > > WHERE A.NAME <http://a.name/> = B.NAME <http://b.name/> > AND A.NAME <http://a.name/> = C.NAME <http://c.name/> > AND A.ATTRIBUTE = 'Weight' > AND B.ATTRIBUTE = 'Height' > AND C.ATTRIBUTE = 'Age' > > > The only problem when I create a view with the above select statement is > that when there are no entries for the field name "AGE" (in the case of > David), then the row does not get displayed. What's the way out in > Postgresql? I know the way it is addressed in Oracle but it doesn't seem to > work in Postgresql. > > Thanks. > > Abhi > > > > > -- > Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-sql > > -- ============================== If Pac-Man had affected us as kids, we'd all be running around in a darkened room munching pills and listening to repetitive music.
