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CRloser_rank_pointsEATE TABLE players(
    "player_id" INT PRIMARY KEY,
    "first_name" TEXT,
    "last_name" TEXT,
    "hand" TEXT,
    "birth_date" DATE,
    "country_code" TEXT
);
CREATE TABLE matches(
  "best_of" INT,
  "draw_size" INT,
  "loser_age" FLOAT,
  "loser_entry" TEXT,
  "loser_hand" TEXT,
  "loser_ht" INT,
  "loser_id" INT,
  "loser_ioc" TEXT,
  "loser_name" TEXT,
  "loser_rank" INT,
  "loser_rank_points" INT,
  "loser_seed" INT,
  "match_num" INT,
  "minutes" INT,
  "round" TEXT,
  "score" TEXT,
  "surface" TEXT,
  "tourney_date" DATE,
  "tourney_id" TEXT,
  "tourney_level" TEXT,
  "tourney_name" TEXT,
  "winner_age" FLOAT,
  "winner_entry" TEXT,
  "winner_hand" TEXT,
  "winner_ht" INT,
  "winner_id" INT,
  "winner_ioc" TEXT,
  "winner_name" TEXT,
  "winner_rank" INT,
  "winner_rank_points" INT,
  "winner_seed" INT,
  "year" INT,
  FOREIGN KEY(loser_id) REFERENCES players(player_id),
  FOREIGN KEY(winner_id) REFERENCES players(player_id)
);



CREATE TABLE qualifying_matches(
  "best_of" INT,
  "draw_size" INT,
  "l_1stIn" TEXT,
  "l_1stWon" TEXT,
  "l_2ndWon" TEXT,
  "l_SvGms" TEXT,
  "l_ace" TEXT,
  "l_bpFaced" TEXT,
  "l_bpSaved" TEXT,
  "l_df" TEXT,
  "l_svpt" TEXT,
  "loser_age" FLOAT,
  "loser_entry" TEXT,
  "loser_hand" TEXT,
  "loser_ht" INT,
  "loser_id" INT,
  "loser_ioc" TEXT,
  "loser_name" TEXT,
  "loser_rank" INT,
  "loser_rank_points" INT,
  "loser_seed" INT,
  "match_num" INT,
  "minutes" INT,
  "round" TEXT,
  "score" TEXT,
  "surface" TEXT,
  "tourney_date" DATE,
  "tourney_id" TEXT,
  "tourney_level" TEXT,
  "tourney_name" TEXT,
  "w_1stIn" TEXT,
  "w_1stWon" TEXT,
  "w_2ndWon" TEXT,
  "w_SvGms" TEXT,
  "w_ace" TEXT,
  "w_bpFaced" TEXT,
  "w_bpSaved" TEXT,
  "w_df" TEXT,
  "w_svpt" TEXT,
  "winner_age" FLOAT,
  "winner_entry" TEXT,
  "winner_hand" TEXT,
  "winner_ht" INT,
  "winner_id" INT,
  "winner_ioc" TEXT,
  "winner_name" TEXT,
  "winner_rank" INT,
  "winner_rank_points" INT,
  "winner_seed" INT,
  "year" INT,
  FOREIGN KEY(loser_id) REFERENCES players(player_id),
  FOREIGN KEY(winner_id) REFERENCES players(player_id)
);

CREATE TABLE rankings(
  "ranking_date" DATE,
  "ranking" INT,
  "player_id" INT,
  "ranking_points" INT,
  "tours" INT,
  FOREIGN KEY(player_id) REFERENCES players(player_id)
);