From 282d9ca8ace896907acf8849c6a110bbab267d2d Mon Sep 17 00:00:00 2001
From: han <101347419+aboolathings@users.noreply.github.com>
Date: Thu, 12 May 2022 19:25:52 +0100
Subject: [PATCH] constraints finished

---
 constraint_9.sql | 205 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 205 insertions(+)

diff --git a/constraint_9.sql b/constraint_9.sql
index e69de29..4a7763b 100644
--- a/constraint_9.sql
+++ b/constraint_9.sql
@@ -0,0 +1,205 @@
+-- NOT NULL
+ALTER TABLE players
+MODIFY (player_name NOT NULL)
+MODIFY (contact_email NOT NULL)
+MODIFY (contact_number NOT NULL);
+
+ALTER TABLE teams
+MODIFY (team_name NOT NULL)
+MODIFY (date_established NOT NULL);
+
+ALTER TABLE team_players
+MODIFY (date_joined NOT NULL);
+
+ALTER TABLE categories
+MODIFY (genre_name NOT NULL);
+
+ALTER TABLE tournaments
+MODIFY (tournament_name NOT NULL)
+MODIFY (tournament_start_date NOT NULL)
+MODIFY (tournament_end_date NOT NULL;
+
+ALTER TABLE sponsors
+MODIFY (sponsor_name NOT NULL)
+MODIFY (sponsor_start_date NOT NULL);
+
+ALTER TABLE prizes
+MODIFY (prize_amount NOT NULL)
+MODIFY (achievement_name NOT NULL);
+
+ALTER TABLE rounds
+MODIFY (round_name NOT NULL);
+
+ALTER TABLE games
+MODIFY (game_name NOT NULL);
+
+ALTER TABLE statistics
+MODIFY (game_duration NOT NULL)
+MODIFY (game_WLD NOT NULL)
+MODIFY (game_kills NOT NULL)
+MODIFY (game_deaths NOT NULL)
+MODIFY (game_assists NOT NULL);
+
+-- alter primary keys
+
+ALTER TABLE players
+ADD CONSTRAINT pk_players
+PRIMARY KEY player_id;
+
+ALTER TABLE teams
+ADD CONSTRAINT pk_teams
+PRIMARY KEY team_id;
+
+ALTER TABLE team_players
+ADD CONSTRAINT pk_team_players
+PRIMARY KEY team_player_id;
+
+ALTER TABLE categories
+ADD CONSTRAINT pk_categories
+PRIMARY KEY genre_id;
+
+ALTER TABLE tournaments
+ADD CONSTRAINT pk_tournaments
+PRIMARY KEY tournament_id;
+
+ALTER TABLE tournament_participants
+ADD CONSTRAINT pk_tournament_participants
+PRIMARY KEY tournament_participant_id
+
+ALTER TABLE sponsors
+ADD CONSTRAINT pk_sponsors
+PRIMARY KEY sponsor_id;
+
+ALTER TABLE prizes
+ADD CONSTRAINT pk_prizes
+PRIMARY KEY prize_id;
+
+ALTER TABLE rounds
+ADD CONSTRAINT pk_rounds
+PRIMARY KEY round_id;
+
+ALTER TABLE games
+ADD CONSTRAINT pk_games
+PRIMARY KEY game_id;
+
+ALTER TABLE statistics
+ADD CONSTRAINT pk_statistics
+PRIMARY KEY game_result_id;
+
+ALTER TABLE game_participants
+ADD CONSTRAINT pk_game_participants
+PRIMARY KEY game_participant_id;
+
+-- alter unique
+
+ALTER TABLE players
+ADD CONSTRAINT uc_contact_email
+UNIQUE (contact_email)
+ADD CONSTRAINT uc_contact_number
+UNIQUE (contact_number);
+
+ALTER TABLE categories
+ADD CONSTRAINT uc_genre_name
+UNIQUE (genre_name);
+
+-- alter foreign keys
+
+ALTER TABLE team_players
+ADD CONSTRAINT fk_team_players(player_id)
+FOREIGN KEY player_id
+REFERENCES players(player_id)
+ADD CONSTRAINT fk_team_players(team_id)
+FOREIGN KEY team_id
+REFERENCES teams(team_id);
+
+ALTER TABLE tournaments
+ADD CONSTRAINT fk_tournaments(genre_id)
+FOREIGN KEY genre_id
+REFERENCES categories(genre_id);
+
+ALTER TABLE tournament_participants
+ADD CONSTRAINT fk_tournament_participants(tournament_id)
+FOREIGN KEY tournament_id
+REFERENCES tournaments(tournament_id)
+ADD CONSTRAINT fk_tournament_participants(player_id)
+FOREIGN KEY player_id
+REFERENCES players(player_id)
+ADD CONSTRAINT fk_tournament_participants(team_id)
+FOREIGN KEY team_id
+REFERENCES teams(team_id);
+
+ALTER TABLE prizes
+ADD CONSTRAINT fk_prizes(sponsor_id)
+FOREIGN KEY sponsor_id
+REFERENCES sponsors(sponsor_id)
+ADD CONSTRAINT fk_prizes(tournament_id)
+FOREIGN KEY tournament_id
+REFERENCES tournaments(tournament_id);
+
+ALTER TABLE games
+ADD CONSTRAINT fk_games(round_id)
+FOREIGN KEY round_id
+REFERENCES rounds(round_id);
+
+ALTER TABLE statistics
+ADD CONSTRAINT fk_statistics(game_id)
+FOREIGN KEY game_id
+REFERENCES games(game_id);
+
+ALTER TABLE game_participants
+ADD CONSTRAINT fk_game_participants(game_id)
+FOREIGN KEY game_id
+REFERENCES games(game_id)
+ADD CONSTRAINT fk_game_participants(tournament_participant_id)
+FOREIGN KEY tournament_participant_id
+REFERENCES tournament_participants(tournament_participant_id);
+
+-- CHECK
+
+ALTER TABLE players
+ADD CONSTRAINT ck_player_name
+CHECK (player_name = UPPER(player_name))
+ADD CONSTRAINT ck_contact_email
+CHECK (contact_email = UPPER(contact_email));
+
+ALTER TABLE teams
+ADD CONSTRAINT ck_team_name
+CHECK (team_name = UPPER(team_name));
+
+ALTER TABLE categories
+ADD CONSTRAINT ck_genre_name
+CHECK (genre_name = UPPER(genre_name))
+ADD CONSTRAINT ck_genre_description
+CHECK (genre_description = UPPER(genre_description))
+ADD CONSTRAINT ck_genre_accronym
+CHECK (genre_accronym = UPPER(genre_accronym));
+
+ALTER TABLE tournaments
+ADD CONSTRAINT ck_tournament_city
+CHECK (tournament_city = UPPER(tournament_city))
+ADD CONSTRAINT ck_tournament_country
+CHECK (tournament_country = UPPER(tournament_country_))
+ADD CONSTRAINT ck_tournament_arena
+CHECK (tournament_arena = UPPER(tournament_arena));
+
+ALTER TABLE sponsors
+ADD CONSTRAINT ck_sponsor_name
+CHECK (sponsor_name = UPPER(sponsor_name))
+ADD CONSTRAINT ck_sponsor_type
+CHECK (sponsor_type = UPPER(sponsor_type));
+
+ALTER TABLE prizes
+ADD CONSTRAINT ck_achievement_name
+CHECK (achievement_name = UPPER(achievement_name));
+
+ALTER TABLE rounds
+ADD CONSTRAINT ck_round_name
+CHECK (round_name = UPPER(round_name));]
+
+ALTER TABLE games
+ADD CONSTRAINT ck_game_name
+CHECK (game_name = UPPER(game_name));
+
+ALTER TABLE statistics
+ADD CONSTRAINT ck_game_WLD
+CHECK (game_WLD = UPPER(game_WLD));
\ No newline at end of file