! (not)

invalidates the truthiness of an evaluated expression syntax !expression sample usage !department\ engineering returns all records where department does not match engineering see also > (greater than) docid\ kc0htlkxuvbamz x6qft9 = (equals) docid 50o8vwta5zp6sv8dqdwjl != (not equals) docid\ g6prxutgm2vrcnw7hcqry