At the time the second (redundant) data is entered you should notice that there is already an entry in the data base for the re-entered data.
At that time you either throw away the redundant data or replace/edit the existing data base entry.
Perhaps you need to show us the sort of code you have currently and explain where the problem is?
In reply to Re^3: redundancy Checker
by GrandFather
in thread redundancy Checker
by Anonymous Monk
| For: | Use: | ||
| & | & | ||
| < | < | ||
| > | > | ||
| [ | [ | ||
| ] | ] |