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_23958944_6 ( no_by_series VARCHAR, no_by_season VARCHAR )

### Question ###
Name the number of series for 19

### Accurate SQL ###

SELECT no_by_series FROM table_23958944_6 WHERE no_by_season = 19