70 lines
2.1 KiB
SQL
70 lines
2.1 KiB
SQL
-- Part 1; add drops so that we can keep re-running this file.
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DROP TABLE Reservation;
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DROP TABLE TravelAgent;
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DROP TABLE Cruise;
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DROP TABLE Company;
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DROP TABLE Customer;
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DROP SEQUENCE customerID_seq;
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DROP SEQUENCE cruiseID_seq;
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DROP SEQUENCE travelAgentID_seq;
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DROP SEQUENCE reservationID_seq;
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-- Part 2; Set up schema and insert data.
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CREATE TABLE Customer(
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customerID NUMBER,
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firstName VARCHAR2(15),
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lastName VARCHAR2(15),
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address VARCHAR2(30),
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phone NUMBER(10),
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age NUMBER(3),
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CONSTRAINT Customer_pk PRIMARY KEY(customerID),
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CONSTRAINT Customer_U1 UNIQUE(firstName, lastName, phone),
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CONSTRAINT Customer_phoneNumber_val CHECK (phone IS NOT NULL)
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);
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CREATE SEQUENCE customerID_seq;
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CREATE TABLE Company(
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companyName VARCHAR2(15),
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stockSymbol CHAR(4),
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website VARCHAR2(40),
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CONSTRAINT Company_pk PRIMARY KEY(companyName),
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CONSTRAINT Company_stockSymbol_U UNIQUE(stockSymbol)
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);
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CREATE TABLE Cruise(
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cruiseID NUMBER,
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cruiseName VARCHAR2(25),
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departurePort VARCHAR2(20),
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days NUMBER(2),
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companyName VARCHAR2(15),
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shipName VARCHAR2(30),
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price NUMBER(7, 2),
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CONSTRAINT Cruise_pk PRIMARY KEY(cruiseID),
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CONSTRAINT Cruise_companyName_fk FOREIGN KEY (companyName) REFERENCES Company(companyName) ON DELETE SET NULL
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);
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CREATE SEQUENCE cruiseID_seq;
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CREATE TABLE TravelAgent(
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travelAgentID NUMBER,
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firstName VARCHAR2(15),
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lastName VARCHAR2(20),
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title VARCHAR2(15),
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salary NUMBER(7, 2),
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CONSTRAINT TravelAgent_pk PRIMARY KEY(travelAgentID),
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CONSTRAINT TravelAgent_title_val CHECK (title IN ('Assistant', 'Agent', 'Manager'))
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);
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CREATE SEQUENCE travelAgentID_seq;
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CREATE TABLE Reservation(
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reservationID NUMBER,
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customerID NUMBER,
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cruiseID NUMBER,
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travelAgentID NUMBER,
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travelDate DATE,
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CONSTRAINT Reservation_pk PRIMARY KEY(reservationID),
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CONSTRAINT Reservation_customerID_fk FOREIGN KEY (customerID) REFERENCES Customer(customerID) ON DELETE CASCADE,
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CONSTRAINT Reservation_cruiseID_fk FOREIGN KEY (cruiseID) REFERENCES Cruise(cruiseID) ON DELETE CASCADE,
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CONSTRAINT Reservation_travelAgentID_fk FOREIGN KEY (travelAgentID) REFERENCES TravelAgent(travelAgentID) ON DELETE CASCADE
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);
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CREATE SEQUENCE reservationID_seq; |