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In a tree-wise data structure, with only one parent per child, what is the perceived advantage of using this linking table rather than just adding the parent ID to the main table?

In reply to Re^2: Tree Structure and Db by simonm
in thread Tree Structure and Db by InfiniteLoop

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    [Eily]: I just wrote a oneliner to solve a (non perl) colleague's problem, and it worked on the first try
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