user: Question: What day did the Diamondbacks go 2-7?
Columns: ['Date', 'Opponent', 'Score', 'Loss', 'Attendance', 'Record']
Types: ['text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['July 1', 'Diamondbacks', '2-7', 'Loaiza (3-5)', 19024.0, '42-38']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Opponent" = 'Diamondbacks' AND "Score" = '2-7';