Solved

distinct in oracle xmlagg

Posted on 2011-02-24
3
4,379 Views
Last Modified: 2012-05-11
Experts.. I have a query which is below

 select rtrim(EXTRACT(XMLAGG (XMLELEMENT("s",a.src_id|| ',' )), '/s/text()').getstringval())
        into v_src_id_list
        from cfs a, cdr b
        where b.emp_oid = 235
        and b.enty_id= a.enty_id;

This is getting the list but some of the elements in the list are duplicates. for ex: when I print out the v_src_id_list I have 1,2,3,3,4,4,5 in it.

Is there any way to eliminate the duplicates in this list?
0
Comment
Question by:chickanna
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 77

Accepted Solution

by:
slightwv (䄆 Netminder) earned 250 total points
ID: 34973670
Check out:
http://www.experts-exchange.com/Database/Oracle/Q_26845549.html


Try this:
select rtrim(EXTRACT(XMLAGG (XMLELEMENT("s",src_id|| ',' )), '/s/text()').getstringval())
        into v_src_id_list
        from ( select distinct a.src_id from cfs a, cdr b
        where b.emp_oid = 235
        and b.enty_id= a.enty_id);

0
 
LVL 74

Assisted Solution

by:sdstuber
sdstuber earned 250 total points
ID: 34973673
query distinct values first then aggregate


 select rtrim(EXTRACT(XMLAGG (XMLELEMENT("s",src_id|| ',' )), '/s/text()').getstringval())
        into v_src_id_list
from
(select distinct a.src_id
        from cfs a, cdr b
        where b.emp_oid = 235
        and b.enty_id= a.enty_id)

0
 

Author Closing Comment

by:chickanna
ID: 34973785
thank you experts.
0

Featured Post

Want Experts Exchange at your fingertips?

With Experts Exchange’s latest app release, you can now experience our most recent features, updates, and the same community interface while on-the-go. Download our latest app release at the Android or Apple stores today!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article started out as an Experts-Exchange question, which then grew into a quick tip to go along with an IOUG presentation for the Collaborate confernce and then later grew again into a full blown article with expanded functionality and legacy…
When it comes to protecting Oracle Database servers and systems, there are a ton of myths out there. Here are the most common.
This video explains at a high level about the four available data types in Oracle and how dates can be manipulated by the user to get data into and out of the database.
This video shows how to Export data from an Oracle database using the Original Export Utility.  The corresponding Import utility, which works the same way is referenced, but not demonstrated.
Suggested Courses

636 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question