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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 tableaspnet_membership and tbl_countryaspnet_membership the column UserId uniqueidentifier primary key, and tbl_country ID primarykey autoinc int.Parent table aspnet_membership:UserId uniqueidentifier primary keyChild table tbl_countryID primarykey autoinc int, UserId uniqueidentifier primary keyWhat is the difference:Parent table aspnet_membershipUserId uniqueidentifier primary key Relationship With Child table tbl_country UserId uniqueidentifier primary keyandParent table aspnet_membershipUserId uniqueidentifier primary key Relationship With Child table tbl_country UserId uniqueidentifier Foreign key.Is there any difference? |
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Difference between columns