Question

give an example of data on which each of the following validation check in the following cases (a) alphabetic check (b) numeric check (c) consistency check (d) completeness check (e) table lookup​

Answer 1

Answer:

In computer science, data validation is the process of ensuring data has undergone data cleansing to ensure they have data quality, that is, that they are both correct and useful. It uses routines, often called "validation rules", "validation constraints", or "check routines", that check for correctness, meaningfulness, and security of data that are input to the system. The rules may be implemented through the automated facilities of a data dictionary, or by the inclusion of explicit application program validation logic of the computer and its application