Computer Science for IGCSE & O level - Databases (Section 2 - No. 13)
What does the 'Format check' validation rule usually verify?
The length of the data.
The content of the data matches a required pattern.
If the data is present or not.
If the data matches a valid option from a predefined list.
คำอธิบาย
Format checks confirm that data conforms to a specific pattern, such as a date format.