09.11.2014, 01:08
The DELETE statement does not accept single fields. It is meant to delete whole rows only, as it already says in the first paragraph of the documentation: http://dev.mysql.com/doc/refman/5.0/en/delete.html
If you want to reset/remove the value of a single field you should just use UPDATE to set it to NULL
If you want to reset/remove the value of a single field you should just use UPDATE to set it to NULL