A validation rule is simply to make sure that the data is entered correctly into the database (go onto bitesize-ICT-validation and verification for more info)
The validation rule is used in completing online shopping as it is a means of verification of identity and confirming legal and authorized transaction.
Yes, but it depends on the validation routines used.
types of validations are: required field validation range validation pattern matching validation database specific validation numeric validation
Validation.
No, there is no distinction between Digital Validation Document DV and Folder DV. "Digital Validation Document" is a general term referring to any digital record used for validation, regardless of its format or where it is stored.
sterile cotton swab
Validation should always be considered in a software program. The amount of validation depends on what the program is doing, and how it is doing it. If the validation is a small percentage of the overall program then it doesn't matter much how efficient it is in terms of performance. There are good and bad ways (actually inefficient ways) to do validation. If you instrument a program and find that a significant portion of the time is spent in validation you may want to visit the algorithms used in the validation to see if there is a more effective way to do this. In some cases the performance of validation of data is very important; in other cases it is a side-effect.
Input validation
error trap or error handler
error trap or error handler
error trap or error handler
Validation allows users to restrict what can be entered, by setting up validation rules, like specifying a minimum value that can be entered, or that a cell can only accept dates for example. There are a lot of other ways validation can be used.