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_2342078_2 (production_code__order_they_were_made___number VARCHAR, episode__number VARCHAR)

### Question ###
What is every production code for episode # 13?

### Accurate SQL ###

SELECT production_code__order_they_were_made___number FROM table_2342078_2 WHERE episode__number = 13