In my excel I have the following text in a cell:
INSERT INTO `educations`(`education_id`, `school`, `specialization`, `date_from`, `date_to`, `user_id`) VALUES (NULL,'NULL','software','2006-01-01 00:00:00','2006-01-01 00:00:00',@inserted_id);
I want to (programmatically) substitute all the 'NULL' and change them to NULL (without the quotes).
I tried using the substitute function but I cannot get it working.
=SUBSTITUTE(DU7;"''NULL''";"NULL")