Hi,
There are many kinds of dedupe software to deduplicate lists and
databases. I have tried most of them but my favourite is WinPure
Clean & Match from http://www.winpure.com , it has many
features such as fuzzy matching, partial matching, merge/purge and
much more, but most importantly its very easy to use.
Further check it out the free trial
http://www.winpure.com/downloadcleanmatch.HTML. I hope this would
be useful for your database.
Thanks