On Sun, Oct 03, 2010 at 02:54:41PM -0400, Frank Bax wrote:
Whatever clause I choose to add I *must* ensure that final result set
contains only one-to-one join between tables. Either of these two
results is acceptable:
For option 1; result C=All or C=Centre is acceptable.
For option 2;
When I join tables; I will sometimes get multiple rows back as in this
example.
create table class(name varchar, p point, d int);
insert into class values( 'All', point(50,50), 100 );
insert into class values( 'NE70', point(70,70), 20 );
insert into class values( 'NE75', point(75,75), 20 );
