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_25800134_19 (director VARCHAR, series__number VARCHAR)

### Question ###
Who directed episode number 626 in the series?

### Accurate SQL ###

SELECT director FROM table_25800134_19 WHERE series__number = 626