Oracle group by example

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Hi guys i have a simple query that displays information from users, users can have more than 1 office assigned, now i want to group those users in offices look below:

select u.name, r.region, r.office
from user u
join region r on u.regionID=r.regionID

Results
row  name   region  office
1    SCOTT  FLORIDA MIAMI
2    SCOTT  FLORIDA TAMPA
3    SANDRA TEXAS   DALLAS
4    SOPHIA TEXAS   KILLEEN
5    SOPHIA TEXAS   DALLAS

Wanted Results
row  name   region  office
1    SCOTT  FLORIDA MIAMI
                    TAMPA
2    SANDRA TEXAS   DALLAS
3    SOPHIA TEXAS   KILLEEN
                    DALLAS

The LISTAGG function doesn't work on 10g, searching for an alternative...

Posted 19-Oct-11 11:07am

rhapemerald

Updated 20-Oct-11 4:33am

v4

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2 solutions

Solution 1

I have no experience with Oracle so this from search work and is not tested.

I found the LISTAGG[^] statement, which should be available from Oracle 10g.

You statement would look like

SQL

SELECT u.name, r.region, LISTAGG(r.office, ' ') WITHIN GROUP (ORDER BY NULL)
FROM user u
JOIN region r on u.regionID = r.regionID
GROUP BY u.name, r.region
ORDER BY 1, 2 NULLS LAST

I have taken this from Oracle LISTAGG function [^].

Posted 19-Oct-11 11:38am

André Kraak

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rhapemerald · Accepted Answer · 2011-10-20T06:50:00

Solution 2

Found this http://www.oracle-base.com/articles/misc/StringAggregationTechniques.php[^]
This helps

Posted 20-Oct-11 6:50am

rhapemerald