Re: Newbie SQL problem with UPDATE - SQL0811 - repost

[Charles Wilt <charles.wilt@xxxxxxxxx>]

Bob,

It's telling you whatt he problem is, your select:
SELECT b.number
FROM   LRICEXTWF b
WHERE DIGITS(a.lrpin) = substr(b.stude00001,1,5)

Returns more than one row.

It doesn't matter if all the rows returned have the same value for
number or not, the statement will not work if the select returns more
than one row.

So you need to change it such that it only returns one row.
Assuming there's only one value but that it appears in multiple rows,
this works.
SELECT DISTINCT b.number
FROM   LRICEXTWF b
WHERE DIGITS(a.lrpin) = substr(b.stude00001,1,5)

Otherwise, you need some way to pick one of the values returned,
min/max is one possiblity:
SELECT max(b.number)
FROM   LRICEXTWF b
WHERE DIGITS(a.lrpin) = substr(b.stude00001,1,5)

Lastly,
You shouldn't need both the COALESCE and the WHERE EXISTS.  Either one
of them will prevent the error you get when there's no match in
LRICEXTWF for a record in LRACCTWF  and the file in LRACCTWF  is not
nullable.

HTH,
Charles


On Fri, Apr 10, 2009 at 2:16 PM, Bob Schwartz <rschwartz@xxxxxxxxxxxxxxx> wrote:
> I'm trying to update a file with values from another file using the QM SQL statement below.
>
> I keep getting SQL0811 - Result of select more than one row.
>
> Can someone help me out, I've been all over the place and can't figure this one out.
>
> Actually found some of this searching the archives - Thanks  Elvis B.
>
>
>
> Thank you, Bob
>
>
>
>        ************************** Beginning of Data *********************************
>
>  0001.00 UPDATE LRACCTWF a  SET a.number   =
>
>  0002.00   COALESCE((SELECT b.number
>
>  0003.00    FROM   LRICEXTWF b
>
>  0004.00    WHERE DIGITS(a.lrpin) = substr(b.stude00001,1,5)),number)
>
>  0005.00 WHERE EXISTS
>
>  0006.00  (SELECT b.number
>
>  0007.00   FROM   LRICEXTWF b
>
>  0008.00    WHERE DIGITS(a.lrpin) = substr(b.stude00001,1,5))
>
>         ***************************** End of Data ************************************
>
>
> Bob Schwartz
> Director of Technology Services
> Glynn County School System
> 1313 Egmont Street
> Brunswick, GA 31520
>
> 912-280-1045 Office
> 912-223-2924 Cell
> 912-265-2011 Fax
>
> www.glynn.k12.ga.us
> rschwartz@ glynn.k12.ga.us
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