user: Question: On what date was a Friendly competition and a result of 3–0?
Columns: ['Goal', 'Date', 'Venue', 'Score', 'Result', 'Competition']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, '5 September 2010', 'Lubumbashi , DR Congo', '1–0', '4–0', '2012 Africa Cup of Nations qualifying']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Competition" = 'Friendly' AND "Result" = '3–0';