我應該如何着手製作表格'借閱'，以顯示會員與他借用的書籍之間的關係

Question

以下是有關兩個表格的信息，分別是book和member。會員有權借書。

CREATE TABLE IF NOT EXISTS `book` (
    `book_id` int(11) NOT NULL AUTO_INCREMENT, 
    `book_title` varchar(100) NOT NULL, 
    `category_id` int(50) NOT NULL, 
    `author` varchar(50) NOT NULL, 
    `book_copies` int(11) NOT NULL, 
    `book_pub` varchar(100) NOT NULL, 
    `publisher_name` varchar(100) NOT NULL, 
    `isbn` varchar(50) NOT NULL, 
    `copyright_year` int(11) NOT NULL, 
    `date_receive` varchar(20) NOT NULL, 
    `date_added` datetime NOT NULL, 
    `status` varchar(30) NOT NULL, 
    PRIMARY KEY (`book_id`) 
); 

CREATE TABLE member (
    `member_id` int(11) NOT NULL AUTO_INCREMENT, 
    `firstname` varchar(30) NOT NULL, 
    `lastname` varchar(30) NOT NULL, 
    `gender` varchar(10) NOT NULL, 
    `address` varchar(100) NOT NULL, 
    `department` varchar(100) NOT NULL, 
    `contact` varchar(50) NOT NULL, 
    `year` int NOT NULL, 
    `status` varchar(100) NOT NULL, 
    PRIMARY KEY (`member_id`) 
) ; 

Answer 1

你可以像這樣

CREATE TABLE `borrow` (
`borrow_id` int(11) NOT NULL AUTO_INCREMENT, 
`book_id` int(11) NOT NULL COMMENT 'is a foreign key of book', 
`member_id` int(11) NOT NULL COMMENT 'is a foreign key of member', 
PRIMARY KEY (`borrow_id`) 
) ENGINE=InnoDB DEFAULT CHARSET=latin1