RE: Help Crafting a Grouping/Listing Query

  • From: TJ Kiernan <tkiernan@xxxxxxxxxxx>
  • To: "'don@xxxxxxxxx'" <don@xxxxxxxxx>, ORACLE-L <oracle-l@xxxxxxxxxxxxx>
  • Date: Mon, 6 Apr 2015 21:44:43 +0000

Check out LISTAGG()

https://docs.oracle.com/cd/E11882_01/server.112/e41084/functions089.htm#SQLRF30030

HTH,
T. J.


From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On
Behalf Of Don Seiler
Sent: Monday, April 06, 2015 4:39 PM
To: ORACLE-L
Subject: Help Crafting a Grouping/Listing Query

Oracle 11.2.0.3.

For example let's take v$logfile. Let's say I have 2 logfiles per group#.

I'd like to write a query that selects the group number and then puts all
logfiles for that group# in a delimited string in the same row of that result
set. So the result would look something like (using commas as the delimiter):

GROUP MEMBERS
----- -------
1 /path/to/group1_01.rdo,/path/to/group1_02.rdo
2 /path/to/group2_01.rdo,/path/to/group2_02.rdo
3 /path/to/group3_01.rdo,/path/to/group3_02.rdo

Hopefully I haven't explained it too poorly. I'm just having trouble wrapping
my head around getting the grouping into one field.

Don.

--
Don Seiler
http://www.seiler.us

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