TSQL find string which contains unicode

You want to find all strings that contain one or more characters outside ASCII characters 32-126.

I think this should do the job.

SELECT *
FROM your_table
WHERE your_column LIKE N'%[^ -~]%' collate Latin1_General_BIN

http://stackoverflow.com/questions/5184429/querying-a-sql-server-2008-table-to-find-values-in-a-column-containing-unicode-c