| Primary keys in child tables [message #312637] |
Wed, 09 April 2008 08:57  |
martin41339
Messages: 1
Registered: April 2008
Location: London, UK |
Junior Member |
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Can you give me your thoughts on the following proposition: "A primary key on a child table is superfluous"
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| Re: Primary keys in child tables [message #312764 is a reply to message #312637 ] |
Wed, 09 April 2008 13:29  |
Frank
Messages: 5230
Registered: April 2002
Location: NL |
Senior Member |
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Nonsense.
In a relational database, each and every tuple needs a unique identifier.
Just my opinion; no idea if it's backed by any theory.
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