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

If you have access SSIS check out the Fuzzy grouping and Fuzzy lookup transformation.

http://www.sqlteam.com/article/using-fuzzy-lookup-transformations-in-sql-server-integration-services

http://msdn.microsoft.com/en-us/library/ms137786.aspx