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SQL Server >> What is Primary key and Foreign Key?...
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What is Primary key and Foreign Key?
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Joydeep
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Posted: Friday 09, May 2008 12:09:10 PM
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how primary key and foreign key is integrated....
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| SAPANA R | Posted: Saturday 10, May 2008 08:21:14 AM | | Primary key is d one which uniquely identifies the row of a per
ticular table.
A foreign key is a field that points to the primary key of anot
her table.
Thanks
Sapana R
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| Rakesh Choudhary | Posted: Friday 23, January 2009 12:13:49 PM | | hi Joydeep
Primary key :-
Primary key is unique and not null.
It is a unique key on which all the other candidate keys are fu
nctionally dependent
Foregin key:-
It allows refrencing another table using the primary key for th
e other table.
Thanks
Rakesh
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