Is there a simple way to query the children of a node?

Question

I\'ve been using the crap out of the Nested Set Model lately. I have enjoyed designing queries for just about every useful operation and view. One thing I\'m stuck on is how

Answer 1

I'd go with a depth column, too. But use

SELECT Child.Node, Child.LEFT, Child.RIGHT
FROM Tree AS Child, Tree AS Parent
WHERE
        Child.Depth = Parent.Depth + 1
        AND Child.LEFT > Parent.LEFT
        AND Child.RIGHT < Parent.RIGHT
        AND Parent.LEFT = 1  -- Given Parent Node Left Index

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