explain data validation
Answers
Answer:
Validation is an automated check, performed to guarantee that the data input is rational and acceptable. It does not check the correctness of the data itself.
As an example, let’s assume a coffee shop is hiring baristas aged 18 to 25. The system can be programmed to only accept numbers between 18 and 25 for the age field. This is called a range check.
However, this does not guarantee that the number entered is correct. An applicant’s age might be 20, but if 18 is entered it will still be valid, just incorrect.
Validation is a way of trying to lessen the number of errors in the data input.
The validation is carried out by the computer when you input data. It is a way of checking the input data against a given set of validation rules.
The purpose of validation is to make sure any given set of data is logical, rational, complete, and within acceptable limits.
Answer:
Explanation:
Validation is an automated check, performed to guarantee that the data input is rational and acceptable. It does not check the correctness of the data itself.
As an example, let’s assume a coffee shop is hiring baristas aged 18 to 25. The system can be programmed to only accept numbers between 18 and 25 for the age field. This is called a range check.
However, this does not guarantee that the number entered is correct. An applicant’s age might be 20, but if 18 is entered it will still be valid, just incorrect.
Validation is a way of trying to lessen the number of errors in the data input.
The validation is carried out by the computer when you input data. It is a way of checking the input data against a given set of validation rules.
The purpose of validation is to make sure any given set of data is logical, rational, complete, and within acceptable limits.