user: Question: On what date was the Competition of Friendly held?
Columns: ['Date', 'Venue', 'Score', 'Competition', 'Match report']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['March 28, 2007', "Ta' Qali Stadium", '0-1', 'Euro2008Q', 'Report']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Competition" = 'Friendly';