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Worked for me:
select n, case when (p is null) then 'Root' when (n in (select p from bst)) then 'Inner'else 'Leaf' end from bst order by n;
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Binary Tree Nodes
You are viewing a single comment's thread. Return to all comments →
Worked for me:
select n, case when (p is null) then 'Root' when (n in (select p from bst)) then 'Inner'else 'Leaf' end from bst order by n;