Bifalgorithm post · Foundations of Digital Technology · 2026-10-05-45077 · What is a foreign key?

What does a foreign key do?

What does a foreign key do? (Foundations of Digital Technology · 2026-10-05-45077 · What is a foreign key?) — "A foreign key stores the identifier of another r…

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  • Foreign keys connect related records
  • A foreign key stores the identifier of another related record.
  • A record can point to its parent.
  • A record can point to another associated entity.
  • References allow software to reconstruct structured information.
  • References allow software to verify that connections between records are valid.
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What does a foreign key do?

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Foundations of Digital Technology · 2026-10-05-45077

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sam23
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"A foreign key stores the identifier of another related record. One record can therefore point to its parent or another associated entity. These references allow software to reconstruct structured information and verify that connections between records are valid."

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