Hi,

I have a table like this

create table clinical_data (
  group_def text,
  item_def text,
  value text
);

Assuming this example data...

GROUP_DEF, ITEM_DEF, VALUE
---------------------------------------------------
"MEDHIST", "BODSYS",  "foo"
"MEDHIST", "TERM", "bar"
"MEDHIST", "ONSET", "baz"

I'd like to create a view that looks like

BODSYS, TERM, ONSET
---------------------------------------
"foo", "bar", "baz"

I've got a feeling the answer lies in outer joins but my SQL is a
little rusty.  This seems like something people would need to do a
lot.  Is there a name for this that I can go lookup?

Many Thanks,
Andy
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