How to get the node root for a child to help connect by front
HelloI searched in many places to do that, but not able to get the exact o/p sp poster my question here.
I have a table with columns parent_id, child_id and. This parent_child levels can be a lot, but my goal is to find the ultimate parent (do not know the right term)
as if I have a = xyz child_node and its parent company = pqr and her parents = lmn, that might be the ultimate parent is not any other parent.
So if I start with child_code = "xyz" then I should get the parent as "lmn" and not the immediate parent "pqr".
Help, please.
Thank you
Aashish
1. When you want to find all parents position = 100:
SELECT position_id,parent_position_id
FROM position
where position_id = 100
CONNECT BY prior position_id = parent_position_id
2. When you want to find all childs position = 100:
SELECT position_id,parent_position_id
FROM position
where position_id = 100
CONNECT BY prior parent_position_id = position_id
Kind regards
Sayan M.
Tags: Database
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