+ 1
primary key?
how to create a table with 2 primary keys? not using candidate key?
6 Réponses
+ 6
why would you need 2 primary keys? pls elaborate
+ 4
You can only have one primary key :) but you can have a Composite Primary Key which is a primary key made from two or more columns.
like that :-
primary key (S-ID, GPA)
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You cannot have2 PK in a table
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i possible
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there is no scope of using two primary keys together
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identifies the uniqueness of the records in the database and ignores the redundancy of the data