If you only need the first row and want to use SELECT ... INTO, why not
simply adding a FETCH FIRST ROW ONLY clause at the end of the
SELECT-Statement.
If multiple rows are found only the first one is returned, and can be
received in a host variable (no error or negative SQL code is returned)
Exec SQL Select ... into ...
From ...
Where ...
Fetch first row only;
Mit freundlichen Grüßen / Best regards
Birgitta Hauser
"Shoot for the moon, even if you miss, you'll land among the stars." (Les
Brown)
"If you think education is expensive, try ignorance." (Derek Bok)
"What is worse than training your staff and losing them? Not training them
and keeping them!"
-----Ursprüngliche Nachricht-----
Von: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] Im Auftrag von Dan
Gesendet: Wednesday, 20.1 2016 02:24
An: Midrange Systems Technical Discussion
Betreff: Re: Complex (for me) SQL question
In our case, the first occurrence of a duplicate for a part number made it
possible for all subsequent duplicates for that part number to occur.
Primarily because someone embedded SQL that did a SELECT ... INTO
datastructure. When more than one record was in the result set, the query
failed. They tested SQLCOD >= 0 and <> 100 to discern that query found a
record. However, when more than one record is returned, SQLCOD = -811, and
RECORD_FOUND was set to false, causing a subsequent INSERT. So, finding
when the first duplicate occurred allowed us to define a date range across
all affected part numbers and we were able to eliminate several potential
root causes.
- Dan
On Tue, Jan 19, 2016 at 7:25 PM, Michael Schutte <mschutte369@xxxxxxxxx>
wrote:
If you were looking to see when duplicates occurred, I would have
personally preferred...
select item
from file
group by item
having count(1) > 1
So if this query was running periodically, I would send off an email
as soon as at least one record was read from this.
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