How to detect duplicate data?

Question

I have got a simple contacts database but I\'m having problems with users entering in duplicate data. I have implemented a simple data comparison but unfortunately the duplicate

Answer 1

For those wandering around the web and end up here, might I suggest that you try using a Google Sheet add-on I created called Flookup. It's particularly good with names and it has a couple of other awesome features which I'll describe below:

1. Say you have a list of names and there are 2 people called "John Smith". You can use the rank parameter from Flookup to instruct the algorithm to return the 1st, 2nd, 3rd or nth best match. This is helpful if you have additional information that you can use to identify the "John Smith" you want.
2. Say you have an additional database/list of apartment numbers. You an specify which "John Smith" you want by typing: John Smith & Apartment A or John Smith & Apartment B as the lookup parameter to help distinguish between the two names.

I hope you find Flookup as beneficial as others have.