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Old 11-29-11, 07:46
donan donan is offline
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Question - super keys

Hello there.

super keys are defined as combinations of attributes that can be uniquely used to identify a database record. Also, candidate keys are a subset of super keys, also called minimal super keys

my question is: can foreign keys of a table used in creating a super key?

Thanks in advance
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Old 11-29-11, 08:22
r937 r937 is offline
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the answer is yes
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please visit Simply SQL and buy my book
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Old 11-29-11, 21:44
donan donan is offline
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thank you
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