A combination check is a data validation rule that tests to ensure that a data item fits the required data type.

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A combination check is a data validation rule that tests to ensure that a data item meets certain criteria, such as being within a range or following a specific pattern, but it does not specifically test for data type. Data type checks are typically done using other validation rules, such as a text only or number only rule.

A Combination Check Is a Data Validation Rule That Tests