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_name_39 (tournament VARCHAR, margin_of_victory VARCHAR, date VARCHAR)

### Question ###
Which Tournament has a Margin of victory of 1 stroke, and a Date of oct 7, 1990?

### Accurate SQL ###

SELECT tournament FROM table_name_39 WHERE margin_of_victory = "1 stroke" AND date = "oct 7, 1990"