- A The ability to secure and restrict access to sensitive data
- B The process of optimizing data storage and retrieval
- C The practice of maintaining data consistency and correctness
- D The ability to perform complex data calculations and analysis
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Answer:
C
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Referential integrity in a relational database refers to the consistency and correctness of the data relationships between tables. It ensures that foreign key values in one table match the primary key values in another table, preventing orphaned records and maintaining data integrity.
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