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DROP TABLE bookcat CASCADE CONSTRAINTS; CREATE TABLE bookcat( );

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DROP TABLE book CASCADE CONSTRAINTS; CREATE TABLE book( );

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DROP TABLE storeuser CASCADE CONSTRAINTS; CREATE TABLE storeuser( );

username VARCHAR2 (20) PRIMARY KEY, password VARCHAR2 (20) NOT NULL, name tel

VARCHAR2 (20) NOT NULL,

id catid

NUMBER

PRIMARY KEY,

NOT NULL

id

NUMBER

PRIMARY KEY,

catname VARCHAR2 (40) NOT NULL

NUMBER

REFERENCES bookcat(id) ON DELETE CASCADE,

VARCHAR2 (50) NOT NULL, NUMBER NOT NULL, NUMBER NOT NULL,

name price

saleprice

descript VARCHAR2 (500) NOT NULL, author contents image

VARCHAR2 (50) NOT NULL, VARCHAR2 (2000) NULL, VARCHAR2 (50) NULL

VARCHAR2 (20) NOT NULL,

VARCHAR2 (100) NOT NULL, VARCHAR2 (50) NULL

address email

¶©µ¥ÐÅÏ¢±í

DROP TABLE orders CASCADE CONSTRAINTS; CREATE TABLE orders( );

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DROP TABLE orderdetail CASCADE CONSTRAINTS; CREATE TABLE orderdetail( );

_____________________________________________________________________

orderid

NUMBER NOT NULL

id

NUMBER

PRIMARY KEY,

username VARCHAR2 (20) NOT NULL

REFERENCES storeuser(username) ON DELETE CASCADE,

DATE

NOT NULL,

time

delivery VARCHAR2 (20) NOT NULL, payment

VARCHAR2 (20) NOT NULL

REFERENCES orders(id) ON DELETE CASCADE,

NUMBER NOT NULL

bookid

REFERENCES book(id) ON DELETE CASCADE,

NUMBER NOT NULL, NUMBER NOT NULL

count price

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