No matching unique or primary key for this column-list --error

Question

CREATE TABLE CUSTOMER(CUS_NUM NUMBER(10) PRIMARY KEY,CUS_NAME VARCHAR2(50),ADDRESS VARCHAR2(50));
CREATE TABLE ITEM(ITEM_NUM NUMBER(10),ITEM_DESC VARCHAR2(50),TYPE VARCHAR2(50),ITEM_STATUS VARCHAR2(50),
CONSTRAINT PK_ITEM PRIMARY KEY(ITEM_NUM,TYPE));
CREATE TABLE ITEM_TYPE(TYPE VARCHAR2(50) PRIMARY KEY,TYPE_NAME VARCHAR2(50),SKU VARCHAR2(50),RATING VARCHAR2(50));
CREATE TABLE ORDERS(ORDER_NUMBER NUMBER(10),CUS_NUM NUMBER(10),ITEM_NUM NUMBER(10),ORDER_POINT VARCHAR2(50),DISPATCH_POINT VARCHAR2(50),
PRIORITY VARCHAR2(50),ORDER_STATUS VARCHAR2(50),
CONSTRAINT PK_ORDERS PRIMARY KEY(ORDER_NUMBER,ITEM_NUM),
CONSTRAINT FK1_ORDERS FOREIGN KEY (CUS_NUM) REFERENCES CUSTOMER(CUS_NUM),
CONSTRAINT FK2_ORDERS FOREIGN KEY (ITEM_NUM) REFERENCES ITEM(ITEM_NUM));
Hi,friends i created tables as above when i creating 'ORDERS' table the error will fir as "ORA-02270: no matching unique or primary key for this column-list".
can any body solve this issue.
Cheers,
Sudhir reddy.

Answer 1

For your own sanity, you should learn to format your code, or use a tool to do it for you. For the sanity of the forum members, you should preserve that code using the \ tagsCREATE TABLE CUSTOMER
CUS_NUM NUMBER(10) PRIMARY KEY,
CUS_NAME VARCHAR2(50),
ADDRESS VARCHAR2(50)
CREATE TABLE ITEM
ITEM_NUM NUMBER(10),
ITEM_DESC VARCHAR2(50),
TYPE VARCHAR2(50),
TYPE is a reserved word.  Call it ITEM_TYPEITEM_STATUS VARCHAR2(50),
CONSTRAINT PK_ITEM PRIMARY KEY(ITEM_NUM,TYPE)
CREATE TABLE ITEM_TYPE
TYPE VARCHAR2(50) PRIMARY KEY,
again, with the reserved word.TYPE_NAME VARCHAR2(50),
SKU VARCHAR2(50),
RATING VARCHAR2(50)
CREATE TABLE ORDERS
ORDER_NUMBER NUMBER(10),
be consistent.  NUM or NUMBER.  Pick one and stick with it.CUS_NUM NUMBER(10),
ITEM_NUM NUMBER(10),
ORDER_POINT VARCHAR2(50),
DISPATCH_POINT VARCHAR2(50),
PRIORITY VARCHAR2(50),
ORDER_STATUS VARCHAR2(50),
CONSTRAINT PK_ORDERS PRIMARY KEY(ORDER_NUMBER,ITEM_NUM),
CONSTRAINT FK1_ORDERS FOREIGN KEY (CUS_NUM) REFERENCES CUSTOMER(CUS_NUM),
CONSTRAINT FK2_ORDERS FOREIGN KEY (ITEM_NUM) REFERENCES ITEM(ITEM_NUM)