>Hi,
> I have one promary key and candicate key in my native VFP table. When I insert record into table, it cause error of uniqueness. I need to know which field cause error programmatically in order to take action...
>
>
>Thank you

You will have to do a seek or an indexseek on each field with the offending value for the appropriate field and try to find the duplicate by hand, as far as I know.