Ron,
GROUP BY does not promise to return rows in order.
You must use ORDER BY for that.
Where's Larry Elkins? This is one of his favorite pet peeves.
I expected to hear from him on this. :)
Jared
"Ron Rogers" <[EMAIL PROTECTED]>
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02/06/02 08:13 AM
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Subject: Re: Select DISTINCT question
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 mª¿ªm
>>> [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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