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Go Back  dBforums > General > Database Concepts & Design > candidate key

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Old 10-04-08, 20:20
ravi.vatalnagraj ravi.vatalnagraj is offline
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candidate key
Can a relation have the number of candidate keys greater than its attributes?

Please give an example?
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Old 10-05-08, 03:34
Pat Phelan Pat Phelan is offline
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No relation of mine is a candidate for more keys than attributes, since only some relations get any key at all. My mother-in-law has many attributes but only one key.

-PatP
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Old 10-05-08, 04:36
aetherealize aetherealize is offline
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Ok, I now see how homework problems could be easy to spot.
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Old 10-05-08, 04:40
dportas dportas is offline
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It may help you if you think about the edge cases.
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