What is the purpose of combination checks in data validation?

Show Answers

Identify errors in entering primary key dataVerify that the data entered matches the expected data typeCheck if a predefined relationship between two fields holds trueConfirm that all mandatory fields have been filled out

Explanation

Combination checks are used to verify whether a specified relationship between two fields is valid. They do not focus on primary key errors, data type verification, or completeness of required fields.