Question: The Sales Manager has called you in as the Database Administrator, for some inconsistencies with the reports he has printed. You notice as you troubleshoot
The Sales Manager has called you in as the Database Administrator, for some inconsistencies with the reports he has printed. You notice as you troubleshoot that some of the records for telephone number, have more than digits and are alphanumeric. Which of the following Constraints would you need to configure to validate the telephone attribute upon capturing?
Group of answer choices
A FOREIGN KEY CONSTRAINT
B PRIMARY KEY CONSTRAINT
C CHECK CONSTRAINT
D DEFAULT CONSTRAINT
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