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 Database Normalization Relationship		  New Topic  Reply to Topic
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groverSaab
Starting Member

India
3 Posts
Posted - 03/19/2012 :  08:06:12  Show Profile  Reply with Quote
If a table has FD(functional Dependency) A->B and A is not the candidate key,then which of the following is true:

a;Data is incorrect
b:Table is not in 2NF(seocnd Normal form)
c:Table involves some redundancy
d:None of these


Plz help????
Thanx in advance.....

ff

tkizer
Almighty SQL Goddess

USA
35007 Posts
Posted - 03/19/2012 :  13:13:20  Show Profile  Visit tkizer's Homepage  Reply with Quote
e:We don't answer homework questions here.

Tara Kizer
Microsoft MVP for Windows Server System - SQL Server
http://weblogs.sqlteam.com/tarad/

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groverSaab
Starting Member

India
3 Posts
Posted - 03/20/2012 :  11:49:07  Show Profile  Reply with Quote
i m jst asking for help......!!
if u can then plz .....!!!!!
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X002548
Not Just a Number

15586 Posts
Posted - 03/20/2012 :  13:05:01  Show Profile  Reply with Quote
OK..which one did YOU pick?



Brett

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X002548
Not Just a Number

15586 Posts
Posted - 03/20/2012 :  13:05:35  Show Profile  Reply with Quote
OK, more help

http://www.emunix.emich.edu/~khailany/files/Normalization.htm



Brett

8-)

Hint: Want your questions answered fast? Follow the direction in this link
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X002548
Not Just a Number

15586 Posts
Posted - 03/20/2012 :  13:07:13  Show Profile  Reply with Quote
and then there's

http://blog.sqlauthority.com/2009/10/22/sql-server-difference-between-candidate-keys-and-primary-key-2/



Brett

8-)

Hint: Want your questions answered fast? Follow the direction in this link
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X002548
Not Just a Number

15586 Posts
Posted - 03/20/2012 :  13:08:50  Show Profile  Reply with Quote
...and just an assumption that this

A->B

Means

A is realted to B..I'm guessing they mean 1 to many?



Brett

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groverSaab
Starting Member

India
3 Posts
Posted - 03/20/2012 :  14:13:28  Show Profile  Reply with Quote
According to me it should be..
b:Table is not in 2NF(second Normal form)

Bt i m nt sure....!!!
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X002548
Not Just a Number

15586 Posts
Posted - 03/20/2012 :  15:05:20  Show Profile  Reply with Quote
Why do you say that...

Brett

8-)

Hint: Want your questions answered fast? Follow the direction in this link
http://weblogs.sqlteam.com/brettk/archive/2005/05/25/5276.aspx


Want to help yourself?

http://msdn.microsoft.com/en-us/library/ms130214.aspx

http://weblogs.sqlteam.com/brettk/

http://brettkaiser.blogspot.com/
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