If table reorganization is an option for you, you could consider using integer ranges for describing parant/children relationships. I have seen them in one of Joe Celko books: http://www.amazon.com/gp/product/1558609202/sr=8-2/qid=1154595988/ref=pd_bbs_2/104-2243146-1376759?ie=UTF8 In that way, you can find all the children with just one query. Regards Marco On 8/2/06, bruce <bedouglas@xxxxxxxxxxxxx> wrote:
hi... i have a tbl fooTBL name parentID ID so a name can have might have a parentID, as well as an ID. 'name's are associated with other 'name's via the parentID. in other words, if a name's parentID == a name's ID, name1 is the parent of name2. name parentID ID foo - 1 cat 1 2 dog 2 3 my question, how can i come up with a sql query that will list all the children (and children's children...) of a top level item? i had done this awhile ago.. but can't recall how i did it.. thanks ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend
-- Marco Bizzarri http://notenotturne.blogspot.com/
