Re: help : select unique values of a non-key field, tia

Are we doing some homework here ? :)

Anyway this is one solution

select Name, age
from your_table y
where rowid = (select rowid from your_table y2

                      where rownum < 2
                      and y.age = y2.age);

is this really what you wanted ? This will take the first occurance the program finns at a certain age and output the result.

If you want all occurances only printed once like if you had Brandon, 12
Walsh, 12
Brenda, 12
Brenda, 12

Then the soultion would be

select name, age from your_table
group by age, name;

Brandon, 12
Walsh, 12
Brenda, 12

Regards
/Joachim

Lee Gwun Wai <gwunwai_at_pacific.net.sg> wrote in article <6beuth$5of$1_at_newton.pacific.net.sg>...
> Hello everybody,
>
> How do I select unique values of a field that is not a key?
>
> For example, a Persons table with fields (Name, Age,....) where we can
 have
> more than 1 person sharing the same age.
>
> I want to get 1 name for every age there is in the table. 1 name for age
 10,
> 1 name for age 11,....
>
> Thanks in advance,
> Gwun Wai
>
>
>
Received on Mon Feb 09 1998 - 00:00:00 CST