Started the schema tables

Author: ctf16

schema.sql

@@ -0,0 +1,101 @@
+------------------------------------------------------
+-- SCHEMA: olympics
+------------------------------------------------------
+
+DROP SCHEMA IF EXISTS olympics CASCADE;
+CREATE SCHEMA olympics;
+SET SCHEMA olympics;
+
+DROP TABLE IF EXISTS OLYMPIAD CASCADE;
+DROP TABLE IF EXISTS COUNTRY CASCADE;
+DROP TABLE IF EXISTS SPORT CASCADE;
+DROP TABLE IF EXISTS PARTICIPANT CASCADE;
+DROP TABLE IF EXISTS ACCOUNT CASCADE;
+DROP TABLE IF EXISTS TEAM_MEMBERS CASCADE;
+DROP TABLE IF EXISTS TEAM CASCADE;
+DROP TABLE IF EXISTS EVENTS CASCADE;
+DROP TABLE IF EXISTS VENUE CASCADE;
+DROP TABLE IF EXISTS MEDAL CASCADE;
+DROP TABLE IF EXISTS PLACEMENT CASCADE;
+
+
+/* 
+TABLE: OLYMPIAD
+Format: (olympiad_num, city, country, opening_date, closing_date, website)
+*/
+CREATE TABLE OLYMPIAD (
+    olympiad_num VARCHAR(30) PRIMARY KEY,
+    city VARCHAR(30) NOT NULL,
+    country CHAR(3) NOT NULL FOREIGN KEY, --country code for reference to country table
+    opening_date TIMESTAMP NOT NULL, 
+    closing_date TIMESTAMP NOT NULL,
+    website VARCHAR(30) NOT NULL,
+    CONSTRAINT olympiad_pk PRIMARY KEY (olympiad_num), --checks that the olympiad number is unique and not null
+    CONSTRAINT olympiad_country_fk FOREIGN KEY (country) REFERENCES COUNTRY(country_code) --checks that the country code is a valid country code
+    CONSTRAINT olympiad_opening_date_chk CHECK ((opening_date <= closing_date) OR (closing_date IS NULL)) --checks that the opening date is before the closing date
+);
+
+/*
+TABLE: COUNTRY
+Format: (country_code, country_name)
+*/
+CREATE TABLE COUNTRY (
+    country_code CHAR(3) PRIMARY KEY,
+    country_name VARCHAR(30) NOT NULL,
+    CONSTRAINT country_pk PRIMARY KEY (country_code) --checks that the country code is unique and not null
+);
+
+/*
+TABLE: SPORT
+Format: (sport_id, sport_name, description, team_size, date_added)
+*/
+CREATE TABLE SPORT (
+    sport_id SERIAL PRIMARY KEY,
+    sport_name VARCHAR(30) NOT NULL,
+    description VARCHAR(3kl0),
+    team_size INT NOT NULL,
+    date_added TIMESTAMP NOT NULL,
+    CONSTRAINT sport_pk PRIMARY KEY (sport_id) --checks that the sport id is unique and not null
+    CONSTRAINT sport_team_size_chk CHECK ((team_size > 0) OR (team_size > 100)) --checks that the team size is greater than 0 and less than ... idk maybe 100?
+);
+
+/*
+TABLE: PARTICIPANT
+Format: (participant_id, acount, first, middle, last, birth_country, dob, gender)
+*/
+
+/* 
+TABLE: ACCOUNT
+Format: (account_id, username, passkey, role, last_login)
+*/
+
+/*
+TABLE: TEAM_MEMBERS
+Format: (team, participant)
+*/
+
+/*
+TABLE: TEAM
+Format: (team_id, olympiad, sport, coach, country, gender, eligible)
+*/
+
+/*
+TABLE: EVENTS
+Format: (event_id, venue, olympiad, sport, gender, date)
+*/
+
+/*
+TABLE: VENUE
+Format: (venue_name, capacity)
+*/
+
+/*
+TABLE: MEDAL
+Format: (medal_id, type, points)
+*/
+
+/*
+TABLE: PLACEMENT
+Format: (event, team, medal, position)
+*/
+