While looking through the data, you noticed that a field requires a leading 0 such as 01, but data has been entered as 1. What type of constraint is this called?

Name: While looking through the data, you noticed that a field requires a leading 0 such as 01, but data has been entered as 1. What type of constraint is this called?
Brand: Quizplus
Rating: 4.7 (35 reviews)

Question

Quizplus · Accepted Answer

This is an example of a foreign-key data constraint because the value must have a standardized format.

While Looking Through the Data, You Noticed That a Field