How to represent "ALL" in Primary Key -foreign Key relationship.

Posted by Rohit on Stack Overflow See other posts from Stack Overflow or by Rohit
Published on 2010-05-31T08:30:27Z Indexed on 2010/05/31 8:43 UTC
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database-design

I have to create a db design to store blacklisted fax numbers. I have created a table and one column of this table is customerID which is a foreign key to table Customer. Now i want to have a faxnumber which is blacklisted for all customers. How should i proceed with this. Should i use Null in this case. Please provide options

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How to represent "ALL" in Primary Key -foreign Key relationship. - Developer IT

How to represent "ALL" in Primary Key -foreign Key relationship.

database-design

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