Table: golftournament_results_2
Columns: date
tournament
winning_score
margin_of_victory
runner_s_up

Question: What is Date, when Runner(s)-Up is Oliver Wilson?
SQL: SELECT "date" FROM golftournament_results_2 WHERE "runner_s_up" = 'oliver wilson'

Question: What is Date, when Margin Of Victory is 4 Strokes?
SQL: SELECT "date" FROM golftournament_results_2 WHERE "margin_of_victory" = '4 strokes'

Question: What is Runner(s)-up, when Date is 21 Jan 2007?
SQL: SELECT "runner_s_up" FROM golftournament_results_2 WHERE "date" = '21 jan 2007'

Question: What is Tournament, when Margin Of Victory is 1 Stroke, and when Date is 18 Jan 2009?
SQL: SELECT "tournament" FROM golftournament_results_2 WHERE "margin_of_victory" = '1 stroke' AND "date" = '18 jan 2009'