RE: How to "concat" row values into a single column?

From: Saibabu Devabhaktuni <saibabu_d_at_yahoo.com>
Date: Mon, 24 Jul 2006 17:13:56 -0700 (PDT)
Message-ID: <20060725001356.60583.qmail@web56013.mail.re3.yahoo.com>

How about something like this:

create table test1 as select * from dba_objects;

create or replace function test_f (vid in varchar2) return varchar2
as
vout varchar2(50);
begin
for i in (select object_id from test1 where object_name=vid) loop
vout := vout||' '||i.object_id;
end loop;
return vout;
end;
/

select distinct object_name, test_f(object_name) from test1 where object_name='TEST_OBJ';

OBJECT_NAME                    NAME
------------------------------
----------------------------------------
TEST_OBJ                       2101 24011 24075 241258

You can use similar functionality in your case.

Thanks,
 Sai.
http://sai-oracle.blogspot.com

RE: How to "concat" row values into a single column?

• From: "Mark W. Farnham" <mwf_at_xxxxxxxx>
• To: <Rich.Jesse_at_xxxxxx>, <oracle-l_at_xxxxxxxxxxxxx>
• Date: Mon, 24 Jul 2006 16:58:42 -0400

Do you mean:

select to_char(a.at_id)||'
'||to_char(alarm_interval)||'
'||c3.email_address||' '||c4.email_address   from alarm_type a, contact c3, contact c4   where a.at_id = 1

      and c3.at_id = a.at_id
      and c4.at_id = a.at_id
      and c3.contact_id = 3
      and c4.contact_id = 4;

?

If you're at a sufficient RDBMS Level, you might profit from

from alarm_type a, (select at_id,email_address from contact where contact_id
= 3) c3, (select at_id,email_address from contact where contact_id = 4) c4

and losing the last two ands. (Although in a perfect CBO world it wouldn't
matter).

-----Original Message-----
From: oracle-l-bounce_at_xxxxxxxxxxxxx
[mailto:oracle-l-bounce_at_xxxxxxxxxxxxx]On Behalf Of Jesse, Rich
Sent: Monday, July 24, 2006 2:34 PM
To: oracle-l_at_xxxxxxxxxxxxx
Subject: How to "concat" row values into a single column?

Arg. I know I've seen this before and I may have actually done it
before, but I'll be darned if I can remember how.

In 9.2, I have two tables kinda like these:

CREATE TABLE ALARM_TYPE
(

  AT_ID           NUMBER                        NOT
NULL,
  ALARM_INTERVAL  NUMBER                        NOT

NULL
)
/

Insert into ALARM_TYPE

   (AT_ID, ALARM_INTERVAL)
 Values
   (1, 10);
COMMIT; CREATE TABLE CONTACT
(

  CONTACT_ID           NUMBER                   NOT
NULL,
  AT_ID                NUMBER                   NOT
NULL,
  EMAIL_ADDRESS        VARCHAR2(200)            NOT

NULL
)
/

Insert into CONTACT

   (CONTACT_ID, AT_ID, EMAIL_ADDRESS)
 Values
   (3, 1, 'someone_at_xxxxxxxxxx');
Insert into CONTACT

   (CONTACT_ID, AT_ID, EMAIL_ADDRESS)
 Values
   (4, 1, 'else_at_xxxxxxxxxx');
COMMIT; I would like a query to return a single row:

1 10 someone_at_xxxxxxxxxx, else_at_xxxxxxxxxx

I had tried fudging SYS_CONNECT_BY_PATH and some of the XML functions,
but I'm not having any luck. Something along those lines would be an
ideal solution for me for this project. But since these are new tables,
I'm not opposed to a structure change, although I'm not sure I want to
go with the OO approach (e.g. VARRAY column for the email addresses).

Of course, this is way-oversimplified for the sake of brevity.

Anyone???

TIA!
Rich

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    * References:

          o How to "concat" row values into a single
column?
                + From: Jesse, Rich


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Received on Mon Jul 24 2006 - 19:13:56 CDT