Question

What do you mean by data validation rule?​

Answer 1

Answer:

Validation rules verify that the data a user enters in a record meets the standards you specify before the user can save the record. A validation rule can contain a formula or expression that evaluates the data in one or more fields and returns a value of “True” or “False”.

Answer 2

Explanation:

Data validation means checking the accuracy and quality of source data before using, importing or otherwise processing data. Different type of validation can be performed depending on destination constraint or objectives data validation is a form of data cleansing.