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Multiple Choice Questions

Data integrity constraints are used to ........

Computer (Punjab Allied ) DBMS

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Data integrity constraints are used to:

Control who is allowed access to the data

Ensure that duplicate records are not entered into the table

Improve the quality of data entered for a specific property (i.e., table column)

Prevent users from changing the values stored in the table

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Explanation:

Answer: (c).
Improve the quality of data entered for a specific property (i.e., table column)

Integrity constraints are used to ensure accuracy and consistency of data in a relational database. Data integrity is handled in a relational database through the concept of referential integrity. Many types of integrity constraints play a role in referential integrity

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