Not sure how many, if any, DB's support variable length data-arrays but you could always use a blob and pack it yourself. A little more work, but not as much as an exhaustive search of the DB for every node with a parent ID of xx.

The two things I've learned about relational databases are :

In this case, this would mean having a relation table, isChild, which would consist of two columns, parentID and childID. If you have a database with triggers, you can maintain the integrity with stored procedures, if not, you can at least handle node deletions gracefully with a small SQL script.

In reply to Re: (bbfu) (expensive children) Re(4): Will this break your program? by Corion
in thread threaded display of replies by epoptai

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