Non-unique Record Selected -- Edit
There is one or more records that is identical to the record you selected to modify.
The action will only be done on the first match. As a result, the change might not be
visible since you may not be on the page where the first match locates.
Please note that if you used a SELECT query to browse the table then you will only delete
the first record that matches the info in the row selected in spite of the differences
in unselected fields.