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Answer by reaanb for When does one use ternary relationships instead of...
Q1: Why can't I use a ternary relationship for this example?The question indicates that e-mail is recorded on behalf of a single internet store. There's no need to specify it in each association, the...
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When does one use ternary relationships instead of binary ones in a database?
I have a problem, it is as follows:An internet store wants to send e-mails to customers. It wants to keep a database to record what messages have been sent to which customer. Suppose an e-mail has a...
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