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_204_621 ( id number, "no." number, "date" text, "tournament" text, "winning score" text, "margin\nof victory" text, "runner(s)-up" text )

### Question ###
what is the total margin of victory in 1963 tucson open invitational ?

### Accurate SQL ###

SELECT "margin\nof victory" FROM table_204_621 WHERE "date" = 1963 AND "tournament" = 'tucson open invitational'