user: Question: I want to know the location that has a record of 3-0
Columns: ['Res.', 'Record', 'Opponent', 'Method', 'Event', 'Round', 'Time', 'Location']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Won', '4-2', 'Sam Adkins', 'Submission (armbar)', 'Extreme Challenge 18', 1.0, '4:21', 'Davenport, Iowa , United States']
SQL:

assistant: SELECT "Location" FROM "Table" WHERE "Record" = '3-0';