CREATE TABLE table_3133 ("No." FLOAT, "Date" TEXT, "Tournament" TEXT, "Winning score" TEXT, "To par" TEXT, "Margin of victory" TEXT, "Runner ( s ) -up" TEXT)

What was the date for no. 7?
SELECT "Date" FROM table_3133 WHERE "No." = '7'
SELECT "Date" FROM "table_3133" WHERE "No." = '7'