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What Is A Primary Key? |
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Answer» A PRIMARY is a FK on the PARENT-side that points to one “primary” record on the child-side of a 1:M LINK. A primary FK CREATES a 1:1 link between the parent and the child. A primary is a FK on the parent-side that points to one “primary” record on the child-side of a 1:M link. A primary FK creates a 1:1 link between the parent and the child. |
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