> Hi > > i have a table like this > > id name parent_id > 1 europe > 2 spain 1 > 3 england 1 > 4 france 1 > 5 london 3 > 6 mayfair 5 > 7 madrid 2 > > in this table each destination is mapped to a parent destination > eg: mayfair is mapped to london, london is mapped to england etc. > > i like to write a query to find child destinations when an id is given for > a parent destination > eg: if 3 is the id, then the result of query should be 3,5,6 > if 2 is the id, then the result should be 2,7 > > the number of levels in this table is unknown and the query should work > for any number of levels > please provide a sample 'select' query in mysql -- View this message in context: http://www.nabble.com/expanding-hierarchies-tf3808150.html#a10777853 Sent from the MySQL - General mailing list archive at Nabble.com.
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