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_25246990_2 ( no_in_series VARCHAR, prod_code VARCHAR )

### Question ###
What number episode in the series had a production code of 110?

### Accurate SQL ###

SELECT no_in_series FROM table_25246990_2 WHERE prod_code = "110"