Error 1062 is reported during MySQL insertion, but I do not have this field.

The phenomenon and background of the problem

Pictured , I am in the process of database insertion , Always show 1062 Error of , After searching on the Internet, it is said that the problem is in my field , The problem is , In my database , did not sales_num This field .

The following is the contents of this table in my current database , I would like to add another one as shown in the figure above sql Statement content .