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Question Asked By: Arland Smith on Mar 14 In Java Category.

RDB design, Avoiding Duplicate Records

Question Answered By: Dinh Tran on Mar 14

this defining PK on different columns seems quite an interesting way, but here 2 questions arise:
1- are these generated PKs integer?
2- can I apply this feature in other databases? cause I use MySQL and I haven't yet encountered such a feature in it.

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