T-sql query Help

You need to use a cleansing tool for this

SQL 2012 has DQS (Data Quality Services) which does this. This is also available as a task inside SSIS 2012.

http://www.mssqltips.com/sqlservertip/2575/getting-started-with-sql-server-2012-data-quality-services--part-1/

In earlier version you need to use third party component like Melisa Data 

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