You're right that my parent_id column idea would mean only a single parent. I was thinking of a tree in computer science terms, where a node can only have one parent. What you want is probably a directed graph rather than a tree.
In reply to Re^3: Class::DBI and a self-referencing many-to-many
by perrin
in thread Class::DBI and a self-referencing many-to-many
by jgallagher
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