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 table_18012738_1 ( story_no VARCHAR, written_by VARCHAR )

### Question ###
Name the story number for paul cornell

### Accurate SQL ###

SELECT story_no FROM table_18012738_1 WHERE written_by = "Paul Cornell"