Hi,
i created a database with an image field.
my problem is after i upload an image and want to change/delete the image i cant do it.
what i need to do to solve this?
Well, the issue is documented in the docs
There is currently no user interface for deleting a file attached to a database entry, however a workaround would be to delete the entry completely and then create a new entry without the file attached.
One possible solution is to start using the Dataform. It's also possible to fix the Database module if anyone can find the time or moodle.com allocate resources or someone commissions the work.
EDIT: See MDL-7660.