Thank you for your reply. I've one more questions. I've install the driver in the server where SQL 2012 "server version" is installed or at client system? ...

Thank you Grant. I think you are right. The new optimizer has new functionality that is causing the query to run slowly. I optimized the query and...

Wish you and your family a Happy and Prosperous new year.

bitbucket-25253 (4/7/2011)

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Here we go again .... the answer is based on

NCHAR(n) and based on that the supposed answer is correct

However (Question text set to Bold and character size altered...