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programer
Posting Yak Master
221 Posts |
 Posted - 2011-03-22 : 05:24:25
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Hi,
I have a table
aspnet_membership and tbl_country
aspnet_membership the column UserId uniqueidentifier primary key, and tbl_country ID primarykey autoinc int.
Parent table aspnet_membership:
UserId uniqueidentifier primary key
Child table tbl_country
ID primarykey autoinc int, UserId uniqueidentifier primary key
What is the difference:
Parent table aspnet_membership
UserId uniqueidentifier primary key Relationship With Child table tbl_country UserId uniqueidentifier primary key
and
Parent table aspnet_membership
UserId uniqueidentifier primary key Relationship With Child table tbl_country UserId uniqueidentifier Foreign key.
Is there any difference?
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Difference between columns