Founds Error nvarchar data type cannot be selected as DISTIN

QuickWEQuickWE Member Posts: 80
edited 2015-01-27 in NAV Three Tier
Hi professional,

I found one challenge issue when run upgrade Toolkit step.2 during upgrade data from NAV2009 SP1 to NAV2013 R2.
the errors present following:

"The following SQL error was unexpected.
The nvarchar data type cannot be selected as DISTINCT because it is not comparable.
Statement(s) could not be prepared."

It issue make us unable to upgrade data for our qualified customer so may someone help to resolving it problem?

Kind Regards,
Jai
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