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Go Back  dBforums > Database Server Software > Microsoft SQL Server > Help me id candidate and superkeys please

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Old 03-17-06, 11:52
tjm0852 tjm0852 is offline
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Help me id candidate and superkeys please

The relation (table) schema is multimedia (mm_id, f_name, extension, directory, size).

1) Identify at least three super keys for the relation called ?multimedia?.
2) Identify at least two candidate keys for the relation called ?multimedia?

Thanks much
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Old 03-17-06, 11:55
Teddy Teddy is offline
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do I get the college credit if I give you the answers?
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oh yeah... documentation... I have heard of that.

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Old 03-17-06, 11:58
tjm0852 tjm0852 is offline
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yes and a cookie
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Old 03-17-06, 12:08
tjm0852 tjm0852 is offline
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come on, throw me a bone
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Old 03-17-06, 12:15
blindman blindman is offline
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Tibia. Fibula. Ulna.
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Old 03-17-06, 12:16
tjm0852 tjm0852 is offline
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I was looking for an answer to my question, not a smart ass response. Thanks
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Old 03-17-06, 12:22
blindman blindman is offline
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No, you were looking for help cheating on your exam. Ask a dumb-ass question, get a smart-ass response.
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Old 03-17-06, 12:23
tjm0852 tjm0852 is offline
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How about this one:
A B C
a1 b1 c1
a1 b1 c2
a2 b1 c1
a2 b1 c3

Identify the superkeys.
Identify the candidate keys
Identify at least three functional dependencies

I would seriously appreciate some honest help
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Old 03-17-06, 12:26
blindman blindman is offline
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The question doesn't make sense. A superkey is a password key that will unlock any encrypted table. A candidate key is a key that hopes to be elected to superkey, usually after running and winning a primary key.

Functional Dependencies:
1) Alcoholism.
2) Compulsive gambling.
3) Inability to answer one's own exam questions.
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If it's not practically useful, then it's practically useless.

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Old 03-17-06, 12:29
tjm0852 tjm0852 is offline
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Thanks for nothing loser!

I would rather fail then get your help!
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Old 03-17-06, 12:29
tjm0852 tjm0852 is offline
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Oh yeah [obscenity removed], while your at it
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Old 03-17-06, 12:34
tjm0852 tjm0852 is offline
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Quote:
Originally Posted by blindman
Tibia. Fibula. Ulna.
I would love to meet you and break all of the above
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Old 03-17-06, 12:36
blindman blindman is offline
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Quote:
I would rather fail then get your help!
Your wish is granted.
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  #14 (permalink)  
Old 03-17-06, 12:41
tjm0852 tjm0852 is offline
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Quote:
Originally Posted by blindman
I'm pretty sure he has no bones. What is the purpose of a spine without if you have no brain to support?
Yeah, your right, you probably don't have one, you spineless piece of monkey [obscenity removed], .

And smart guy read your statement again it makes no sense. Try 'it' instead of if you database loser!

Last edited by blindman; 08-24-06 at 13:02.
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Old 03-17-06, 12:42
tjm0852 tjm0852 is offline
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Quote:
Originally Posted by blindman
Your wish is granted.
Try again [obscenity removed], I got a 85 without your ghey forums help

Last edited by blindman; 08-24-06 at 13:02.
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