I think he just misread the "group by" as an "order by"
-----Original Message-----
Sent: Wednesday, February 06, 2002 12:08 PM
To: Multiple recipients of list ORACLE-L
Ron,
What am I missing? Both selects will ALWAYS return the same data. Correct???
Rick
"Ron Rogers"
<RROGERS@galo To: Multiple recipients of list ORACLE-L
<[EMAIL PROTECTED]>
ttery.org> cc:
Sent by: Subject: Re: Select DISTINCT question
root@fatcity.
com
02/06/2002
11:13 AM
Please
respond to
ORACLE-L
Beth,
Without going into very much detail about the two selects. 1 will return only the
records that are distinct from each other and 2 will return all rows in a particular
order. Using 1 could result in the elimination of records if there is more than one
record that meets the distinct criteria. Order by will show duplicate records easily.
ROR m���m
>>> [EMAIL PROTECTED] 02/06/02 09:53AM >>>
Hi everyone,
Is one of these more correct than the other ?
1) select distinct customer_number, address_code from orders;
2) select customer_number, address_code
from orders
group by customer_number,address_code;
Our developers do the 1st one mostly. It always bothers me, I'm not sure why, I guess
I just think of it as looking ambiguous even though it does return the same result as
the second option.
Any opinions? Does it maReceived: from CONNECT-MTA by galottertter at all?
TIA,
Beth
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