sql.txt

CREATE TABLE Department
(
    DCode VARCHAR(5) NOT NULL,
    DName VARCHAR(20) NOT NULL,
    PRIMARY KEY (DCode)
);

CREATE TABLE Student
 (
     RollNo INTEGER NOT NULL,
     SName VARCHAR(30) NOT NULL,
     Batch YEAR NOT NULL,
     Branch VARCHAR(5) NOT NULL,
     DoB DATE NOT NULL,
     PRIMARY KEY (RollNo),
     FOREIGN KEY (Branch) REFERENCES Department(DCode)
 )

CREATE TABLE BG
(
    BloodG VARCHAR(5) NOT NULL,
    PRIMARY KEY(BloodG)
)

ALTER TABLE student
ADD(
	BloodG VARCHAR(5),
	FOREIGN KEY(BloodG) REFERENCES bg(BloodG)
   )

CREATE TABLE Faculty
 (
     FID INTEGER NOT NULL,
     FName VARCHAR(30) NOT NULL,
     Dept VARCHAR(5) NOT NULL,
     DoB DATE NOT NULL,
     BloodG VARCHAR(5),
     FOREIGN KEY (BloodG) REFERENCES bg(BloodG),
     PRIMARY KEY (FID),
     FOREIGN KEY (Dept) REFERENCES Department(DCode)
 )

CREATE TABLE Staff
 (
     EID INTEGER NOT NULL,
     EName VARCHAR(30) NOT NULL,
     DoB DATE NOT NULL,
     BloodG VARCHAR(5),
     FOREIGN KEY (BloodG) REFERENCES bg(BloodG),
     PRIMARY KEY (EID)
 )

CREATE TABLE p_type
(
    type VARCHAR(15) NOT NULL,
    PRIMARY KEY (type)
    );

CREATE TABLE passenger
(
    ID INTEGER NOT NULL,
    Type VARCHAR(15) NOT NULL,
    PRIMARY KEY (ID, type),
    FOREIGN KEY(Type) REFERENCES p_type(type)
    )

ALTER TABLE student
ADD FOREIGN KEY (RollNo) REFERENCES passenger(ID)

ALTER TABLE faculty
ADD FOREIGN KEY (FID) REFERENCES passenger(ID);

ALTER TABLE staff
ADD FOREIGN KEY (EID) REFERENCES passenger(ID)

CREATE TABLE Guest
 (
     GID INTEGER NOT NULL,
     GName VARCHAR(30) NOT NULL,
     DoB DATE NOT NULL,
     HostID INTEGER NOT NULL,
     HostType VARCHAR(15) NOT NULL,
     BloodG VARCHAR(5) NOT NULL,
     FOREIGN KEY (BloodG) REFERENCES bg(BloodG),
     PRIMARY KEY (GID),
     FOREIGN KEY (HostID) REFERENCES passenger(ID),
     FOREIGN KEY (HostType) REFERENCES passenger(Type),
     FOREIGN KEY (GID) REFERENCES passenger(ID)
 )

CREATE TABLE STOPS
(
    StopName VARCHAR(20) NOT NULL,
    StopType VARCHAR(10) NOT NULL,
	PRIMARY KEY (StopName)
)  

CREATE TABLE Routes
(
    RID INTEGER NOT NULL,
    STime TIME,
    DTime TIME,
    Src VARCHAR(20),
    Dst VARCHAR(20),
    Capacity INTEGER,
    PRIMARY KEY (RID),
    FOREIGN KEY (Src) REFERENCES Stops(StopName),
    FOREIGN KEY (Dst) REFERENCES Stops(StopName)
)


CREATE TABLE bus_instances
(
    BID INTEGER NOT NULL,
    RID INTEGER NOT NULL,
    Capacity INTEGER NOT NULL,
    BusDate DATE,
    DepTime TIME,
    PRIMARY KEY (BID),
    FOREIGN KEY (RID) REFERENCES routes(RID),
    FOREIGN KEY (Capacity) REFERENCES routes(Capacity),
    FOREIGN KEY (DepTime) REFERENCES routes(DTime)
)

CREATE TABLE Seat_Matrix
(
    BID INTEGER NOT NULL,
    RID INTEGER NOT NULL,
    SeatNo INTEGER NOT NULL,
    Passenger INTEGER DEFAULT NULL,
    PRIMARY KEY (BID, RID, SeatNo),
    FOREIGN KEY (RID) REFERENCES routes(RID),
    FOREIGN KEY (Passenger) REFERENCES passenger(ID)
)

INSERT INTO p_type VALUES ('Student'), ('Faculty' ), ('Staff'), ('Guest')
    
INSERT INTO bg VALUES ('A+'), ('A-' ), ('B+'), ('B-'), ('AB+'), ('AB-'), ('O+'), ('O-')

ALTER TABLE department MODIFY COLUMN DName VARCHAR(50)

INSERT INTO department VALUES 
            ('CSE'  ,   'Computer Science and Engineering'), 
            ('ECE'  ,   'Electronics and Communication Engineering'),
            ('ME'   ,   'Mechanical Engineering'),
            ('NS'   ,   'Natural Sciences');
            
INSERT INTO department VALUES ('DS', 'Design')

INSERT INTO stops VALUES
	('PG Hostel', 'Institute'),
        ('Hall 4', 'Institute'),
        ('Nescafe (Hall 1)', 'Institute'),
        ('Hexagon Canteen', 'Institute'),
        ('Narmada Residency', 'Institute'),
        ('IIITDMJ Main Gate', 'Institute'),
        ('Railway Station', 'City'),
        ('Empire Talkies', 'City'),
        ('Russel Chowk', 'City'),
        ('Penty Naka', 'City')

ALTER TABLE passenger ADD pwd VARCHAR(40)