Feedback

DDL2.sql

@@ -0,0 +1,76 @@
+-- Drop tables
+
+DROP TABLE ticket_info;
+DROP TABLE flight_details;
+DROP TABLE credit_card_details;
+DROP TABLE flight;
+DROP TABLE passenger;
+
+-- Create tables
+
+CREATE TABLE flight (
+flight_id NUMBER PRIMARY KEY,
+airline_id NUMBER NOT NULL,
+airline_name VARCHAR(50) NOT NULL,
+from_location VARCHAR(50) NOT NULL,
+to_location VARCHAR(50) NOT NULL,
+departure_time VARCHAR(50) NOT NULL,
+arrival_time VARCHAR(50) NOT NULL,
+total_seats NUMBER CHECK (total_seats >= 100 AND total_seats <= 1000)
+);
+
+CREATE TABLE passenger (
+profile_id NUMBER PRIMARY KEY,
+password VARCHAR(50) NOT NULL,
+f_name VARCHAR(50) NOT NULL,
+l_name VARCHAR(50) NOT NULL,
+m_name VARCHAR(20),
+address VARCHAR(50),
+mobile_no VARCHAR(50) NOT NULL UNIQUE,
+email VARCHAR(50) NOT NULL UNIQUE
+);
+
+CREATE TABLE credit_card_details (
+profile_id NUMBER NOT NULL,
+card_number VARCHAR(50) PRIMARY KEY,
+card_type VARCHAR(50) NOT NULL,
+expiration_month VARCHAR(50) NOT NULL,
+expiration_year NUMBER NOT NULL,
+FOREIGN KEY (profile_id) REFERENCES passenger(profile_id)
+);
+
+CREATE TABLE flight_details (
+flight_id NUMBER NOT NULL,
+flight_departure_date DATE,
+price NUMBER NOT NULL CHECK (price >= 1000 AND price <= 100000),
+PRIMARY KEY (flight_id, flight_departure_date),
+FOREIGN KEY (flight_id) REFERENCES flight(flight_id)
+);
+
+CREATE TABLE ticket_info (
+ticket_id NUMBER PRIMARY KEY,
+profile_id NUMBER NOT NULL,
+flight_id NUMBER NOT NULL,
+flight_d_date DATE NOT NULL,
+status VARCHAR(50),
+FOREIGN KEY (flight_id) REFERENCES flight(flight_id),
+FOREIGN KEY (profile_id) REFERENCES passenger(profile_id),
+FOREIGN KEY (flight_id, flight_d_date) REFERENCES flight_details(flight_id, flight_departure_date)
+);
+
+-- Add column in the table
+
+ALTER TABLE flight ADD duration VARCHAR(50);
+
+-- Modify column definition in the table
+
+ALTER TABLE flight MODIFY duration VARCHAR(20);
+
+-- Rename the column name
+
+ALTER TABLE flight RENAME COLUMN total_seats TO seats;
+
+-- Drop the column from table
+
+ALTER TABLE passenger DROP COLUMN m_name;
+ALTER TABLE flight DROP COLUMN duration;