Football Results Database – part 1

In order to store the results of the NFL games, we’re going to need some tables. My initial design is as follows;

  • a table to store details of the teams in the league. For simplicity, we’ll assume that we only want to store results for a single season (for now), so the teams won’t change divisions. The ‘teams’ table just needs to store a ‘short-name’ for each team (which might as well act as the Primary Key for the table), the full name of the team, which conference it plays in, and which division. That should do for now.
  • a table to store details of the two Conferences. We might as well use AFC and NFC as the Primary Key for this table
  • a table to store details of each game; the week number, the date, maybe the location (maybe we’ll add this later) and whether the game went into overtime
  • a table to sore the results. a result will take up two rows of the table, one row for each team. I’ve added a ‘home’ field, which will be 1 if that row contains the score of the home team.

So, here is my basic table schema for MySQL;

CREATE TABLE `conferences` (
  `short` char(3) NOT NULL,
  `name` varchar(50) NOT NULL,
  PRIMARY KEY (`short`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
insert  into conferences values 
('AFC', 'American Football Conference'), 
('NFC', 'National Football Conference');

CREATE TABLE `games` (
  `game_id` int(11) unsigned NOT NULL AUTO_INCREMENT,
  `week` int(11) NOT NULL,
  `year` int(11) NOT NULL,
  `date` date NOT NULL,
  `overtime` tinyint(4) unsigned NOT NULL DEFAULT '0',
  PRIMARY KEY (`game_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

CREATE TABLE `results` (
  `game_id` int(11) unsigned NOT NULL,
  `team` char(2) NOT NULL,
  `points` int(11) NOT NULL,
  `home` tinyint(4) NOT NULL DEFAULT '0',
  KEY `game_id` (`game_id`),
  KEY `team_fk` (`team`),
  CONSTRAINT `game_fk` FOREIGN KEY (`game_id`) REFERENCES `games` (`game_id`) ON DELETE CASCADE ON UPDATE CASCADE,
  CONSTRAINT `team_fk` FOREIGN KEY (`team`) REFERENCES `teams` (`short`) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

CREATE TABLE `teams` (
  `short` char(2) NOT NULL,
  `name` varchar(100) NOT NULL,
  `conference` char(3) NOT NULL,
  `division` varchar(5) NOT NULL,
  PRIMARY KEY (`short`),
  KEY `conf` (`conference`) USING BTREE,
  CONSTRAINT `conf` FOREIGN KEY (`conference`) REFERENCES `conferences` (`short`) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

INSERT INTO teams VALUES 
('AC', 'Arizona Cardinals', 'NFC', 'West'), 
('AF', 'Atlanta Falcons', 'NFC', 'South'), 
('BB', 'Buffalo Bills', 'AFC', 'East'), 
('BR', 'Baltimore Ravens', 'AFC', 'North'), 
('CB', 'Chicago Bears', 'NFC', 'North'), 
('CL', 'Cleveland Browns', 'AFC', 'North'), 
('CN', 'Cincinnati Bengals', 'AFC', 'North'), 
('CP', 'Carolina Panthers', 'NFC', 'South'), 
('DB', 'Denver Broncos', 'AFC', 'West'), 
('DC', 'Dallas Cowboys', 'NFC', 'East'), 
('DL', 'Detroit Lions', 'NFC', 'North'), 
('GB', 'Green Bay Packers', 'NFC', 'North'), 
('HT', 'Houston Texans', 'AFC', 'South'), 
('IC', 'Indianapolis Colts', 'AFC', 'South'), 
('JJ', 'Jacksonville Jaguars', 'AFC', 'South'), 
('KC', 'Kansas City Chiefs', 'AFC', 'West'), 
('MD', 'Miami Dolphins', 'AFC', 'East'), 
('MV', 'Minnesota Vikings', 'NFC', 'North'), 
('NE', 'New England Patriots', 'AFC', 'East'), 
('NG', 'New York Giants', 'NFC', 'East'), 
('NJ', 'New York Jets', 'AFC', 'East'), 
('NO', 'New Orleans Saints', 'NFC', 'South'), 
('OR', 'Oakland Raiders', 'AFC', 'West'), 
('PE', 'Philadelphia Eagles', 'NFC', 'East'), 
('PS', 'Pittsburg Steelers', 'AFC', 'North'), 
('SD', 'San Diego Chargers', 'AFC', 'West'), 
('SF', 'San Francisco 49ers', 'NFC', 'West'), 
('SL', 'St. Louise Rams', 'NFC', 'West'), 
('SS', 'Seattle Seahawks', 'NFC', 'West'), 
('TB', 'Tampa Bay Buccaneers', 'NFC', 'South'), 
('TT', 'Tennessee Titans', 'AFC', 'South'), 
('WR', 'Washington Redskins', 'NFC', 'East');

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