Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE event ( name VARCHAR, id VARCHAR, stadium_id VARCHAR )
TABLE: CREATE TABLE stadium ( name VARCHAR, id VARCHAR, stadium_id VARCHAR )

### Question ###
Find the names of stadiums which have never had any event.

### Accurate SQL ###

SELECT name FROM stadium WHERE NOT id IN (SELECT stadium_id FROM event)