LISTAGG alternative in Oracle 10g

Question

I am kind of newbie in Oracle. Got stuck in the below: I have the below 2 tables:

Site:

**SiteID|SiteName** 
1      Sydney
2      Ne         


        

Answer 1

I think I am close to it, just need a small help: I have created a function GetSiteName, which returns the site name against the SiteID. Now I am using the below xmlagg where in I need to call this function GetSiteName:

select PeopleID, rtrim (xmlagg (xmlelement (e,  clint.GetSiteName(SiteID)   || ',')).extract ('//text()'), ',') SITEIDS
from client.People group by    PeopleID;/

Basically need help in calling the function from inside xmlagg, any thoughts?