AW: SQL - Row Append/Concat

I think you meant to say:
This function can be called as follows:

Select Distinct AddrId, MyUdf(AddrID) as Types
From Table1;

Yes, that's what I meant. I think it's already too late here in Germany to
write SQL UDFs (and their execution) without access to a machine.

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 loosing them? Not training them
and keeping them!"


-----Ursprüngliche Nachricht-----
Von: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] Im Auftrag von Charles Wilt
Gesendet: Tuesday, 09. September 2008 20:45
An: Midrange Systems Technical Discussion
Betreff: Re: SQL - Row Append/Concat

Birgitta,

I think you meant to say:
This function can be called as follows:

Select Distinct AddrId, MyUdf(AddrID) as Types
From Table1;

minor typo.

In any event, interesting....Three separate methods, I wonder which
performs better?

Perhaps if Scott's actual table is a decent size, he can try them all
and let us know.

My money would be on Chuck's, followed by mine, followed by
Birgitta's. But I could be wrong....

Charles

On Tue, Sep 9, 2008 at 2:08 PM, Birgitta Hauser <Hauser@xxxxxxxxxxxxxxx>
wrote:

Hi,

I'd write a small UDF:

CREATE FUNCTION MySchema/MyUdF (
PARAddrId Integer )
RETURNS VARCHAR(1024)
LANGUAGE SQL
NOT DETERMINISTIC
READS SQL DATA
CALLED ON NULL INPUT
DISALLOW PARALLEL

BEGIN

DECLARE RETURNVAL VARCHAR(1024) NOT NULL DEFAULT ' ';

FOR CSRC1 AS C1 CURSOR
FOR SELECT AddrType
FROM TABLE1
WHERE AddrId = ParAddrId
DO SET RETURNVAL = RETURNVAL CONCAT ' ' CONCAT CSRC1.AddrType ;
END FOR ;

RETURN LTRIM (RETURNVAL);
END;

This function can be called as follows:

Select Distinct AddrId, MyUdf(AddrType) as Types
From Table1;

The result should be:
AddrId Types
1 Bill Ship Mail
2 Mail Ship
3 Bill

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 loosing them? Not training

them

and keeping them!"


-----Ursprüngliche Nachricht-----
Von: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] Im Auftrag von Scott Johnson
Gesendet: Tuesday, 09. September 2008 12:01
An: MIDRANGE-L@xxxxxxxxxxxx
Betreff: SQL - Row Append/Concat

I am looking for a method in SQL to append a column from multiple rows

into

a single column of a result set.

If I have a table with the following (simplified example):

AddrID AddrTyp
1 Bill
1 Ship
1 Mail
2 Ship
2 Mail
3 Bill

And want to see the following in an SQL result set:

1 Bill,Mail,Ship
2 Mail,Ship
3 Bill

Is this something that is possible in SQL?


-- Scott


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