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nba-database.sql
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nba-database.sql
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CREATE TABLE sqlite_sequence(name,seq);
CREATE TABLE IF NOT EXISTS "Employee_Types" (
"employeeTypeID" INTEGER NOT NULL,
"employeeType" TEXT NOT NULL UNIQUE,
PRIMARY KEY("employeeTypeID" AUTOINCREMENT)
);
CREATE TABLE IF NOT EXISTS "Locations" (
"locationID" INTEGER NOT NULL,
"city" TEXT NOT NULL,
"state" TEXT NOT NULL,
PRIMARY KEY("locationID" AUTOINCREMENT)
);
CREATE TABLE IF NOT EXISTS "Players_Positions" (
"playerID" INTEGER NOT NULL,
"positionID" INTEGER NOT NULL,
PRIMARY KEY("playerID","positionID"),
FOREIGN KEY("positionID") REFERENCES "Positions"("positionID"),
FOREIGN KEY("playerID") REFERENCES "Players"("playerID")
);
CREATE TRIGGER LocationsConstraintUpdate
BEFORE UPDATE ON Locations
BEGIN
SELECT CASE WHEN city || state = NEW.city || NEW.state
THEN
RAISE(ABORT, "Two cities in the same location")
END
FROM Locations;
END;
CREATE TABLE IF NOT EXISTS "Games" (
"gameID" INTEGER NOT NULL,
"homeTeam" INTEGER NOT NULL CHECK("homeTeam" != "awayTeam"),
"awayTeam" INTEGER NOT NULL CHECK("awayTeam" != "homeTeam"),
"winTeam" INTEGER CHECK("winTeam" != "loseTeam" AND ("winTeam" = "awayTeam" OR "winTeam" = "homeTeam")),
"loseTeam" INTEGER CHECK("loseTeam" != "winTeam" AND ("loseTeam" = "awayTeam" OR "loseTeam" = "homeTeam")),
"date" TEXT NOT NULL,
PRIMARY KEY("gameID" AUTOINCREMENT),
FOREIGN KEY("homeTeam") REFERENCES "Teams"("teamID"),
FOREIGN KEY("awayTeam") REFERENCES "Teams"("teamID"),
FOREIGN KEY("loseTeam") REFERENCES "Teams"("teamID"),
FOREIGN KEY("winTeam") REFERENCES "Teams"("teamID")
);
CREATE TRIGGER NoTeamSameDayUpdate
BEFORE UPDATE OF awayTeam, homeTeam ON Games
BEGIN
SELECT CASE
WHEN (homeTeam || " | " || date) = (NEW.homeTeam || " | " || NEW.date) OR (awayTeam || " | " || date) = (NEW.homeTeam || " | " || NEW.date)
THEN
RAISE(ABORT, "Home team is already playing on this date")
WHEN (awayTeam || " | " || date) = (NEW.awayTeam || " | " || NEW.date) OR (homeTeam || " | " || date) = (NEW.awayTeam || " | " || NEW.date)
THEN
RAISE(ABORT, "Away Team team is already playing on this date")
END
FROM Games;
END;
CREATE TABLE IF NOT EXISTS "Positions" (
"positionID" INTEGER NOT NULL,
"positionDesc" TEXT NOT NULL CHECK("positionDesc" IN ("G","F", "C")),
PRIMARY KEY("positionID" AUTOINCREMENT)
);
CREATE TABLE IF NOT EXISTS "Teams" (
"teamID" INTEGER NOT NULL,
"name" TEXT NOT NULL UNIQUE,
"abbreviation" TEXT NOT NULL UNIQUE,
"locationID" INTEGER NOT NULL,
PRIMARY KEY("teamID" AUTOINCREMENT),
FOREIGN KEY("locationID") REFERENCES "Locations"("locationID")
);
CREATE TRIGGER LocationsConstraintInsert
BEFORE INSERT ON Locations
BEGIN
SELECT CASE WHEN city || state = NEW.city || NEW.state
THEN
RAISE(ABORT, "Two cities in the same location")
END
FROM Locations;
END;
CREATE TRIGGER NoTeamSameDayInsert
BEFORE INSERT ON Games
BEGIN
SELECT CASE
WHEN (homeTeam || " | " || date) = (NEW.homeTeam || " | " || NEW.date) OR (awayTeam || " | " || date) = (NEW.homeTeam || " | " || NEW.date)
THEN
RAISE(ABORT, "Home team is already playing on this date")
WHEN (awayTeam || " | " || date) = (NEW.awayTeam || " | " || NEW.date) OR (homeTeam || " | " || date) = (NEW.awayTeam || " | " || NEW.date)
THEN
RAISE(ABORT, "Away Team team is already playing on this date")
END
FROM Games;
END;
CREATE TRIGGER winTeamAndLoseTeamNotNullUpdate
BEFORE UPDATE OF winTeam, loseTeam ON Games
BEGIN
SELECT CASE WHEN
(NEW.winTeam NOT NULL AND NEW.loseTeam IS NULL) OR (NEW.loseTeam NOT NULL AND NEW.winTeam IS NULL)
THEN
RAISE(ABORT, "Need to fill out both Win Team and Lose Team")
END;
END;
CREATE TRIGGER winTeamAndLoseTeamNotNullInsert
BEFORE INSERT ON Games
BEGIN
SELECT CASE WHEN
(NEW.winTeam NOT NULL AND NEW.loseTeam IS NULL) OR (NEW.loseTeam NOT NULL AND NEW.winTeam IS NULL)
THEN
RAISE(ABORT, "Need to fill out both Win Team and Lose Team")
END;
END;
CREATE TABLE IF NOT EXISTS "Employees" (
"employeeID" INTEGER NOT NULL,
"firstName" TEXT NOT NULL,
"lastName" TEXT NOT NULL,
"birthDate" TEXT NOT NULL,
"teamID" INTEGER,
"employeeTypeID" INTEGER NOT NULL,
PRIMARY KEY("employeeID" AUTOINCREMENT),
FOREIGN KEY("teamID") REFERENCES "Teams"("teamID"),
FOREIGN KEY("employeeTypeID") REFERENCES "Employee_Types"("employeeTypeID")
);
CREATE TRIGGER NotEnoughPlayersInsert
BEFORE INSERT ON Games
BEGIN
WITH winningTeamCount AS (
SELECT COUNT(teamID) AS playerCountWinningTeam
FROM "Employees"
WHERE teamID = NEW.winTeam AND employeeTypeID=1)
SELECT CASE
WHEN
(playerCountWinningTeam IS NULL OR playerCountWinningTeam < 5) AND NEW.winTeam NOT NULL
THEN
RAISE(ABORT, "Not Enough Players on win team" )
WHEN
playerCountWinningTeam > 15 AND NEW.winTeam NOT NULL
THEN
RAISE(ABORT, "Too many Players on win team" )
END
FROM winningTeamCount;
WITH losingTeamCount AS (
SELECT COUNT(teamID) AS playerCountLosingTeam
FROM "Employees"
WHERE teamID = NEW.loseTeam AND employeeTypeID=1)
SELECT CASE
WHEN
(playerCountLosingTeam IS NULL OR playerCountLosingTeam < 5) AND NEW.loseTeam NOT NULL
THEN
RAISE(ABORT, "Not Enough Players on lose team" )
WHEN
playerCountLosingTeam > 15 AND NEW.loseTeam NOT NULL
THEN
RAISE(ABORT, "Too many Players on lose team" )
END
FROM losingTeamCount;
END;
CREATE TABLE IF NOT EXISTS "Coaches" (
"coachID" INTEGER NOT NULL,
"yearsOfExp" INTEGER NOT NULL CHECK("yearsOfExp" >= 0),
"employeeID" INTEGER NOT NULL,
PRIMARY KEY("coachID" AUTOINCREMENT),
FOREIGN KEY("employeeID") REFERENCES "Employees"("employeeID")
);
CREATE TABLE IF NOT EXISTS "Players" (
"playerID" INTEGER NOT NULL,
"height" REAL NOT NULL CHECK("height" > 0),
"weight" REAL NOT NULL CHECK("weight" > 0),
"jerseyNum" INTEGER NOT NULL CHECK("jerseyNum" >= 0 AND "jerseyNum" < 100),
"employeeID" INTEGER NOT NULL,
PRIMARY KEY("playerID" AUTOINCREMENT),
FOREIGN KEY("employeeID") REFERENCES "Employees"("employeeID")
);
CREATE TABLE IF NOT EXISTS "Trades" (
"tradeID" INTEGER NOT NULL,
"employeeID" INTEGER NOT NULL,
"teamFrom" INTEGER NOT NULL CHECK("teamFrom" != "teamTo"),
"teamTo" INTEGER NOT NULL CHECK("teamTo" != "teamFrom"),
"tradeDate" TEXT NOT NULL,
PRIMARY KEY("tradeID" AUTOINCREMENT),
FOREIGN KEY("employeeID") REFERENCES "Employees"("employeeID"),
FOREIGN KEY("teamTo") REFERENCES "Teams"("teamID"),
FOREIGN KEY("teamFrom") REFERENCES "Teams"("teamID")
);
CREATE TRIGGER TradePlayerDelete
AFTER DELETE ON Trades
BEGIN
UPDATE "Employees"
SET teamID = OLD.teamFrom
WHERE employeeID = OLD.employeeID;
END;
CREATE TRIGGER TradePlayerUpdate
AFTER INSERT ON Trades
BEGIN
UPDATE "Employees"
SET teamID = NEW.teamTo
WHERE employeeID = NEW.employeeID;
END;
CREATE TRIGGER NotEnoughPlayersUpdate
BEFORE UPDATE OF winTeam, loseTeam ON Games
BEGIN
WITH winningTeamCount AS (
SELECT COUNT(teamID) AS playerCountWinningTeam
FROM "Employees"
WHERE teamID = NEW.winTeam AND employeeTypeID=1)
SELECT CASE
WHEN
(playerCountWinningTeam IS NULL OR playerCountWinningTeam < 5) AND NEW.winTeam NOT NULL
THEN
RAISE(ABORT, "Not Enough Players on win team" )
WHEN
playerCountWinningTeam > 15 AND NEW.winTeam NOT NULL
THEN
RAISE(ABORT, "Too many Players on win team" )
END
FROM winningTeamCount;
WITH losingTeamCount AS (
SELECT COUNT(teamID) AS playerCountLosingTeam
FROM "Employees"
WHERE teamID = NEW.loseTeam AND employeeTypeID=1)
SELECT CASE
WHEN
(playerCountLosingTeam IS NULL OR playerCountLosingTeam < 5) AND NEW.loseTeam NOT NULL
THEN
RAISE(ABORT, "Not Enough Players on lose team" )
WHEN
playerCountLosingTeam > 15 AND NEW.loseTeam NOT NULL
THEN
RAISE(ABORT, "Too many Players on lose team" )
END
FROM losingTeamCount;
END;
CREATE TRIGGER TeamFromConstraintInsert
BEFORE INSERT ON Trades
BEGIN
SELECT CASE
WHEN (SELECT teamID FROM "Employees" WHERE employeeID = NEW.employeeID) != NEW.teamFrom
THEN RAISE (ABORT, "Select correct teamFrom for Employee")
END
FROM "Employees";
END;
CREATE TRIGGER TeamToConstraintInsert
BEFORE INSERT ON Trades
BEGIN
SELECT CASE
WHEN (SELECT teamID FROM "Employees" WHERE employeeID = NEW.employeeID) = NEW.teamTo
THEN RAISE (ABORT, "Cannot trade employee to the employee's current team")
END
FROM "Employees";
END;
CREATE TRIGGER CoachToTeamConstraintInsert
AFTER INSERT ON "Employees"
BEGIN
SELECT CASE WHEN
(SELECT COUNT(teamID)
FROM "Employees"
WHERE teamID = NEW.teamID AND employeeTypeID = 2) > 1 -- B/c we check before update
THEN RAISE(ABORT, "Can't have more than 1 head coach")
END;
END;
CREATE TRIGGER CoachToTeamConstraintUpdate
AFTER UPDATE of teamID, employeeTypeID ON "Employees"
BEGIN
SELECT CASE WHEN
(SELECT COUNT(teamID)
FROM "Employees"
WHERE teamID = NEW.teamID AND employeeTypeID = 2) > 1 -- B/c we check before update
THEN RAISE(ABORT, "Can't have more than 1 head coach")
END;
END;
CREATE TRIGGER NoMoreThan41GamesInsert
BEFORE INSERT ON "Games"
BEGIN
SELECT CASE WHEN
(SELECT COUNT(homeTeam)
FROM "Games"
WHERE homeTeam = NEW.homeTeam) >= 41
THEN RAISE(ABORT, "Can't have more than 41 home games")
END;
SELECT CASE WHEN
(SELECT COUNT(awayTeam)
FROM "Games"
WHERE awayTeam = NEW.awayTeam) >= 41
THEN RAISE(ABORT, "Can't have more than 41 away games")
END;
END;
CREATE TRIGGER NoMoreThan41GamesUpdate
BEFORE UPDATE OF homeTeam, awayTeam ON "Games"
BEGIN
SELECT CASE WHEN
(SELECT COUNT(homeTeam)
FROM "Games"
WHERE homeTeam = NEW.homeTeam) >= 41
THEN RAISE(ABORT, "Can't have more than 41 home games")
END;
SELECT CASE WHEN
(SELECT COUNT(awayTeam)
FROM "Games"
WHERE awayTeam = NEW.awayTeam) >= 41
THEN RAISE(ABORT, "Can't have more than 41 away games")
END;
END;