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Data integrity constraints are used to:(a) Control who is allowed access to the data(b) Ensure that duplicate records are not entered into the table(c) Improve the quality of data entered for a specific property(d) Prevent users from changing the values stored in the tableI had been asked this question in homework.This intriguing question originated from Constraints topic in chapter Database Systems Design and Implementation of Database Management

Answer»

The correct choice is (c) IMPROVE the QUALITY of data entered for a SPECIFIC property

Best EXPLANATION: The data entered will be in a particular CELL (i.e., table column).



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