RE: SQL , multi row note file.

["Wilt, Charles" <WiltC@xxxxxxxxxx>]

I suppose I should have pointed out that if you can assume that you'll never have more than a certain
number of notes, then you don't need the UDF.  You could simply

Select a.po#, coalesce(b.note_txt,'') concat ' '
            , concat coalesce(c.note_txt,'') concat ' '
            , concat coalesce(d.note_txt,'') concat ' '
            , concat coalesce(e.note_txt,'') concat ' '
            , concat coalesce(f.note_txt,'')
From potable a
   Left outerjoin notetable b on a.po# = b.po# and b.seq# = 1
   Left outerjoin notetable c on a.po# = c.po# and c.seq# = 2
   Left outerjoin notetable d on a.po# = d.po# and d.seq# = 3
   Left outerjoin notetable e on a.po# = e.po# and e.seq# = 4
   Left outerjoin notetable f on a.po# = f.po# and f.seq# = 5


Which one, UDF vs. the above, will perform better is up for grabs... <grin>

Charles Wilt 
--
Software Engineer
CINTAS Corporation - IT 92B
513.701.1307

wiltc@xxxxxxxxxx


> -----Original Message-----
> From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-
> bounces@xxxxxxxxxxxx] On Behalf Of Wilt, Charles
> Sent: Thursday, May 29, 2008 8:04 AM
> To: Midrange Systems Technical Discussion
> Subject: RE: SQL , multi row note file.
>
> Tim,
>
> Anything is possible...with enough effort, time, and/or money!
>
> In you case, what you need is a User Defined Function (UDF) that returns a
> string containing the notes
> concatenated together.
>
> You could write the UDF in either SQL or RPG; then it'd simply be a matter
> of
> 	select po#, concatNotesUDF(po#)
>       from potable
>
> A good place to learn about UDFs is this redbook, "Stored Procedures,
> Triggers, and User-Defined
> Functions on DB2 Universal Database for iSeries"
> http://www.redbooks.ibm.com/abstracts/sg246503.html?Open
>
>
> HTH,
>
>
> Charles Wilt


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