http://www.perlmonks.org?node_id=379587


in reply to Re^4: OO concepts and relational databases
in thread OO concepts and relational databases

Triggers are often used for data integrity to enforce 1 to 1 and 1 to 0 or 1 relationships between more than 2 tables.

--Solo
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You said you wanted to be around when I made a mistake; well, this could be it, sweetheart.