CREATE TABLE "all_players" (
  "player" text,
  "highest_singles_ranking" text,
  "highest_doubles_ranking" text,
  "first_year_played" real,
  "years_played" real,
  "ties_played" real,
  "total_w_l" text,
  "singles_w_l" text,
  "doubles_w_l" text
);

Question: Name the minimum tiesplayed for 6 years
SQL: SELECT MIN("ties_played") FROM "all_players" WHERE "years_played"=6;