SQL SCRIPT ERROR PLEASE HELP!!!

Question

DROP TABLE CUSTOMERUSER CASCADE CONSTRAINTS;
CREATE TABLE CUSTOMERUSER
( Username VARCHAR(10) NOT NULL,
UserID VARCHAR(15) NOT NULL,
Pword VARCHAR(30),
Street VARCHAR(15),
City VARCHAR(15),
Postalcode VARCHAR(15),
Phone VARCHAR(10),
Email VARCHAR(16),
PRIMARY KEY (Username,UserID));
DROP TABLE ADMINISTRATOR CASCADE CONSTRAINTS;
CREATE TABLE ADMINISTRATOR
( Username VARCHAR(10) NOT NULL,
EmployeeID VARCHAR(15) NOT NULL,
Pword VARCHAR(30),
AdminType VARCHAR(15),
PRIMARY KEY (Username,EmployeeID));
DROP TABLE FLIGHT CASCADE CONSTRAINTS;
CREATE TABLE FLIGHT
( FlightID VARCHAR(10) NOT NULL,
FlightNumber VARCHAR(15) NOT NULL,
Airline VARCHAR(30),
AvailableSeats INT,
PRIMARY KEY (FlightID));
DROP TABLE RESERVATION CASCADE CONSTRAINTS;
CREATE TABLE RESERVATION
( ReservationNumber VARCHAR(10) NOT NULL,
IsPaid VARCHAR(4) NOT NULL,
dayof VARCHAR(10),
FlightID VARCHAR(10) NOT NULL,
UserID VARCHAR(15) NOT NULL,
PRIMARY KEY (ReservationNumber,UserID),FOREIGN KEY (FlightID) REFERENCES FLIGHT(FlightID),FOREIGN KEY (UserID) REFERENCES customeruser(UserID));
DROP TABLE PAYMENT CASCADE CONSTRAINTS;
CREATE TABLE PAYMENT
( PaymentID VARCHAR(10) NOT NULL,
PaymentAmount VARCHAR(15) ,
PaymentDate VARCHAR(30),
ReservationNumber INT NOT NULL,
PRIMARY KEY (PaymentID),FOREIGN KEY (ReservationNumber) REFERENCES RESERVATION(ReservationNumber));
DROP TABLE FLIGHTSCHEDULE CASCADE CONSTRAINTS;
CREATE TABLE FLIGHTSCHEDULE
( FlightNumber VARCHAR (15) NOT NULL,
Fromw VARCHAR(25) ,
Wto VARCHAR(25),
DepatureDate VARCHAR(10) ,
ArrivalDate VARCHAR(10),
Class VARCHAR(10) ,
DepatureTime VARCHAR(8),
ArrivalTime VARCHAR (8) NOT NULL,
PRIMARY KEY (FlightNumber),FOREIGN KEY (FlightNumber) REFERENCES FLIGHT(FlightNumber));
When i execute the RESERVATION section. it gaving me a error called " *
ERROR at line 7:
ORA-02270: no matching unique or primary key for this column-list
How to fix that?

Answer 1

in TABLE RESERVATION the FOREIGN KEY (UserID) REFERENCES customeruser(UserID) expects the primary key of TABLE CUSTOMERUSER to be UserID (not PRIMARY KEY (Username,UserID) as in your case) or the TABLE CUSTOMERUSER having an unique index on UserID.
Regards
Etbin
Edited by: Etbin on 3.12.2011 22:22
You might be sorry defining DepartureDate as VARCHAR2(10) and DepartureTime as VARCHAR2(8) instead of Departure DATE (time component included)
the same for ArrivalDate in TABLE FLIGHTSCHEDULE
in TABLE RESERVATION there is dayof VARCHAR(10) too