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What type of key constraint ensures that values in a column must match existing values in a primary key column of another table?

Subject: Database Systems

Topic: Database Normalization

Options:

  1. Option A: Primary Key
  2. Option B: Foreign Key
  3. Option C: Unique Key
  4. Option D: Super Key

Correct Answer:

Option B: Foreign Key

Explanation:

A Foreign Key constraint enforces referential integrity by linking a column in a child table to a primary or unique key column in a parent table.

HomeSubjectsDatabase SystemsDatabase Normalization
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Database SystemsDatabase NormalizationEASY
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What type of key constraint ensures that values in a column must match existing values in a primary key column of another table?

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Database Systems

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