[SQL]: GROUP BY Problems
Ruslan Zasukhin
sunshine at public.kherson.ua
Fri Jun 13 22:07:57 CDT 2003
on 6/13/03 22:01, Frank Schima at frank-list2 at mindstarprods.com wrote:
>>> So I get:
>>> Type A, 4
>>> Type B, 1
>>> Type C, 1
>>>
>>> But I should get:
>>> Type A, 4
>>> Type B, 0
>>> Type C, 0
>>>
>>> There are only 4 records in the Patterns table! The inner join version of
>>> the
>
>> So what?
>> But count(*) counts records in the JOIN table, correct?
>
> Count(*) returns the number of records in each GROUP. 4 records in that table
> means
> the Sum of the Count()s should have been 4 - not 6.
>
>> Frank, please test this query on other DBMS,
>> It seems to me result is correct.
>
> I tested on another database and got a similar unexpected result.
Frank, just to clarify,
You have get result the same as in Valentina ?
--
Best regards,
Ruslan Zasukhin [ I feel the need...the need for speed ]
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