Table: golf_results_6
Columns: col
player
country
score
to_par
winnings
after
before

Question: What is the earliest number in before?
SQL: SELECT MIN("before") FROM golf_results_6

Question: What is the latest after when the player is Steve Stricker?
SQL: SELECT MAX("after") FROM golf_results_6 WHERE "player" = 'Steve Stricker'

Question: List all before numbers when Geoff Ogilvy was playing.
SQL: SELECT "before" FROM golf_results_6 WHERE "player" = 'Geoff Ogilvy'