Appending data to a MySQL database field that already has data in it

Question

I need to \"add\" data to a field that already contains data without erasing whats currently there. For example if the field contains HTML, I need to add additional HTML to

Answer 1

UPDATE Table SET Field=CONCAT(IFNULL(Field, ''), 'Your extra HTML')

If the field contains NULL value then CONCAT will also return NULL. Using IFNULL will help you to update column even it has NULL value.