Using An Identity Field As Primary Key
I want to use the Identity field (increment 1,1) as a primary key and
have a unique constraint on my other field which is of type char.
I am worried that related data in other tables may lose referntial
integrity if records in the ID table get messed up and need to be
re-entered.
Can you please advice on best way to do this. I definitely need a
numeric id field because it makes the joins and queries so much
faster.
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