CREATE TABLE table_name_60 (yards INTEGER, sack VARCHAR(255), asst VARCHAR(255), totaltk VARCHAR(255))
What is the total of yards when asst. is 19, totaltk is 60 and sack is more than 0?
    
SQL: SELECT SUM(yards) FROM table_name_60 WHERE asst = 19 AND totaltk = 60 AND sack > 0