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Home -> Community -> Mailing Lists -> Oracle-L -> RE: SQL question
Many people have made the right diagnosis (duplicates), but I believe the
solution to be wrong (distinct).
I typed too fast and it should have been :
select least(a, b) a, greatest(a, b) b
from mytable
where a <= b
Regards,
Stephane Faroult
RoughSea Ltd
http://www.roughsea.com
On Fri, 3 Dec 2004 11:10 , Freeman Robert - IL <FREEMANR_at_tusc.com> sent:
Think you need a distinct in there, yes?
select distinct least(a, b) a, greatest(a, b) b
from my_table
where least(a, b) <= greatest(a, b);
Otherwise you get dupes, which he didn't have in his sample output.
RF
-----Original Message-----
From: oracle-l-bounce_at_freelists.org[1]
To: oracle-l_at_freelists.org[2]; geraldine_2_at_comcast.net[3]
Sent: 12/3/2004 11:09 AM
Subject: Re: SQL question
select least(a, b) a,
greatest(a, b) b
from my_table
where least(a, b) <= greatest(a, b)
Assuming of course that the table isn't in the multi-million range.
Regards,
Stephane Faroult
RoughSea Ltd
http://www.roughsea.com[4]
On Fri, 03 Dec 2004 16:37 , geraldine_2_at_comcast.net[5] sent:
Hi,
I have the following table below
SQL> select * FRom mytable;
A B
---------- ----------
1 2
3 4
2 1
5 6
4 3
5 rows selected.
and I like to get the following output:
A B
---------- ----------
1 2
3 4
5 6
basically (1,2) is the same as (2,1) and I would just like to display
any of
those combination just once.
Not sure how I can write a SQL to extract the data. Can someone help.
TIA.
Geraldine
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