CREATE TABLE table_65452 ("Week" FLOAT, "Date" CLOB, "Opponent" CLOB, "Result" CLOB, "Attendance" FLOAT)

What week did the dallas cowboys play?
SELECT SUM("Week") FROM table_65452 WHERE "Opponent" = 'dallas cowboys'
SELECT SUM("Week") FROM "table_65452" WHERE "Opponent" = 'dallas cowboys'