CREATE TABLE table_name_17 (date VARCHAR2, visiting_team VARCHAR2, year VARCHAR2)

What Date after 2007 had the San Francisco 49ers as the Visiting Team?
SELECT date FROM table_name_17 WHERE visiting_team = "san francisco 49ers" AND year > 2007
SELECT "date" FROM "table_name_17" WHERE "san francisco 49ers" = "visiting_team" AND "year" > 2007