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Book\u300d\u3068\u3044\u3046\u591a\u5bfe\u591a\u306e\u95a2\u4fc2\u3067\u7d50\u3070\u308c\u3066\u3044\u308b\u3068\u4eee\u5b9a\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u3053\u308c\u3092SQL\u306e\u30c6\u30fc\u30d6\u30eb\u4f5c\u6210\u306b\u7ffb\u8a33\u3059\u308b\u65b9\u6cd5\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n<ul>\n<li>BookID\u3001Title\u3001PublicationYear\u306a\u3069\u306e\u66f8\u7c4d\u5c5e\u6027\u7528\u306e\u5217\u3092\u5099\u3048\u305f\u300cBooks\u300d\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/li>\n<li>AuthorID\u3001FirstName\u3001LastName\u306a\u3069\u306e\u8457\u8005\u5c5e\u6027\u7528\u306e\u5217\u3092\u5099\u3048\u305f\u300cAuthors\u300d\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/li>\n<li>\u591a\u5bfe\u591a\u306e\u95a2\u4fc2\u3092\u8868\u3059\u305f\u3081\u306e\u300cAuthorBook\u300d\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u3053\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u306f\u901a\u5e38\u3001AuthorID\u3068BookID\u306e2\u3064\u306e\u5217\u304c\u542b\u307e\u308c\u3001\u305d\u308c\u305e\u308c\u300cAuthors\u300d\u30c6\u30fc\u30d6\u30eb\u304a\u3088\u3073\u300cBooks\u300d\u30c6\u30fc\u30d6\u30eb\u3092\u53c2\u7167\u3059\u308b\u5916\u90e8\u30ad\u30fc\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306e\u624b\u9806\u306b\u5f93\u3046\u3053\u3068\u3067\u3001\u5fc5\u8981\u306a\u30c6\u30fc\u30d6\u30eb\u3001\u95a2\u4fc2\u3001\u5236\u7d04\u3092\u5099\u3048\u305f\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u306bERD\u3092\u6210\u529f\u88cf\u306b\u7ffb\u8a33\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n<h2>ERD\u306e\u4e8b\u4f8b\u7814\u7a76\uff1a\u30aa\u30f3\u30e9\u30a4\u30f3\u66f8\u5e97<\/h2>\n<p>\u30aa\u30f3\u30e9\u30a4\u30f3\u66f8\u5e97\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u8a08\u3092\u4efb\u3055\u308c\u305f\u3068\u60f3\u50cf\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b7\u30b9\u30c6\u30e0\u306f\u9867\u5ba2\u304c\u66f8\u7c4d\u3092\u95b2\u89a7\u3057\u3001\u8cfc\u5165\u3057\u3001\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u7ba1\u7406\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u8457\u8005\u3084\u51fa\u7248\u793e\u4f1a\u3082\u66f8\u7c4d\u306e\u8ffd\u52a0\u3084\u7ba1\u7406\u304c\u3067\u304d\u308b\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u6301\u3061\u3001\u7ba1\u7406\u8005\u306f\u5168\u4f53\u306e\u30b7\u30b9\u30c6\u30e0\u3092\u76e3\u7763\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u30b9\u30c6\u30c3\u30d71\uff1a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u7279\u5b9a<\/strong><\/p>\n<p>ERD\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u6700\u521d\u306e\u30b9\u30c6\u30c3\u30d7\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306b\u95a2\u9023\u3059\u308b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u7279\u5b9a\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u306e\u30b1\u30fc\u30b9\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u7279\u5b9a\u3067\u304d\u307e\u3059\uff1a<\/p>\n<ol>\n<li><strong>Customer<\/strong>\uff1a\u30aa\u30f3\u30e9\u30a4\u30f3\u66f8\u5e97\u3092\u5229\u7528\u3059\u308b\u500b\u4eba\u3092\u8868\u3057\u307e\u3059\u3002\u5c5e\u6027\u306b\u306fCustomerID\u3001FirstName\u3001LastName\u3001Email\u3001Password\u306a\u3069\u304c\u542b\u307e\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>Book<\/strong>\uff1a\u8cfc\u5165\u53ef\u80fd\u306a\u66f8\u7c4d\u3092\u8868\u3057\u307e\u3059\u3002\u5c5e\u6027\u306b\u306fBookID\u3001Title\u3001Author(s)\u3001ISBN\u3001Price\u3001PublicationYear\u306a\u3069\u304c\u542b\u307e\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>Author<\/strong>\uff1a\u66f8\u7c4d\u306e\u8457\u8005\u3092\u8868\u3057\u307e\u3059\u3002\u5c5e\u6027\u306b\u306fAuthorID\u3001FirstName\u3001LastName\u3001Biography\u306a\u3069\u304c\u542b\u307e\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>Publisher<\/strong>\uff1a\u66f8\u7c4d\u306e\u51fa\u7248\u793e\u4f1a\u3092\u8868\u3057\u307e\u3059\u3002\u5c5e\u6027\u306b\u306fPublisherID\u3001Name\u3001Address\u306a\u3069\u304c\u542b\u307e\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>Order<\/strong>\uff1a\u9867\u5ba2\u306e\u6ce8\u6587\u3092\u8868\u3057\u307e\u3059\u3002\u5c5e\u6027\u306b\u306fOrderID\u3001OrderDate\u3001TotalAmount\u3001Status\u306a\u3069\u304c\u542b\u307e\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>OrderItem<\/strong>\uff1a\u6ce8\u6587\u5185\u306e\u500b\u5225\u306e\u30a2\u30a4\u30c6\u30e0\u3092\u8868\u3057\u307e\u3059\u3002\u5c5e\u6027\u306b\u306fOrderItemID\u3001BookID\u3001Quantity\u3001Subtotal\u306a\u3069\u304c\u542b\u307e\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>Administrator<\/strong>\uff1a\u30b7\u30b9\u30c6\u30e0\u7ba1\u7406\u8005\u3092\u8868\u3057\u307e\u3059\u3002\u5c5e\u6027\u306b\u306fAdminID\u3001FirstName\u3001LastName\u3001Email\u3001Password\u306a\u3069\u304c\u542b\u307e\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ol>\n<p><strong>\u30b9\u30c6\u30c3\u30d72\uff1a\u95a2\u4fc2\u306e\u5b9a\u7fa9<\/strong><\/p>\n<p>\u6b21\u306b\u3001\u3053\u308c\u3089\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3069\u3046\u3057\u304c\u3069\u306e\u3088\u3046\u306b\u95a2\u4fc2\u3057\u3066\u3044\u308b\u304b\u3092\u6c7a\u5b9a\u3057\u307e\u3059\uff1a<\/p>\n<ul>\n<li>A <strong>Customer<\/strong>\u306f\u8907\u6570\u306e <strong>Orders<\/strong>\uff081\u5bfe\u591a\u306e\u95a2\u4fc2\uff09\u3002<\/li>\n<li>\u3042\u308b<strong>\u6ce8\u6587<\/strong>\u306f\u8907\u6570\u306e<strong>\u6ce8\u6587\u9805\u76ee<\/strong>\uff081\u5bfe\u591a\u306e\u95a2\u4fc2\uff09\u3002<\/li>\n<li>\u3042\u308b<strong>\u672c<\/strong>\u306f\u8907\u6570\u306e<strong>\u8457\u8005<\/strong>\u306b\u3088\u3063\u3066\u66f8\u304b\u308c\u308b\u3002\u307e\u305f\u3001<strong>\u8457\u8005<\/strong>\u306f\u8907\u6570\u306e<strong>\u672c<\/strong>\uff08\u591a\u5bfe\u591a\u306e\u95a2\u4fc2\uff09\u3002<\/li>\n<li>\u3042\u308b<strong>\u672c<\/strong>\u306f\u552f\u4e00\u306e<strong>\u51fa\u7248\u8005<\/strong>\u3092\u6301\u3064\u304c\u3001<strong>\u51fa\u7248\u8005<\/strong>\u306f\u8907\u6570\u306e<strong>\u672c<\/strong>\uff08\u591a\u5bfe1\u306e\u95a2\u4fc2\uff09\u3002<\/li>\n<li>\u3042\u308b<strong>\u7ba1\u7406\u8005<\/strong>\u306f\u5168\u4f53\u306e\u30b7\u30b9\u30c6\u30e0\u3092\u76e3\u8996\u3059\u308b\u304c\u3001\u3053\u306e\u7c21\u7565\u5316\u3055\u308c\u305f\u30e2\u30c7\u30eb\u3067\u306f\u4ed6\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3068\u76f4\u63a5\u95a2\u4fc2\u3092\u6301\u305f\u306a\u3044\u3002<\/li>\n<\/ul>\n<p><strong>\u30b9\u30c6\u30c3\u30d73\uff1aERD\u306e\u4f5c\u6210<\/strong><\/p>\n<p>\u305d\u308c\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3068\u305d\u306e\u95a2\u4fc2\u3092\u8996\u899a\u7684\u306b\u8868\u73fe\u3059\u308b\u305f\u3081\u306bERD\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u79c1\u305f\u3061\u306e\u30aa\u30f3\u30e9\u30a4\u30f3\u66f8\u5e97\u7528\u306eERD\u306e\u7c21\u7565\u5316\u3055\u308c\u305f\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u3059\uff1a<\/p>\n<p><strong>\u30b9\u30c6\u30c3\u30d74\uff1a\u5c5e\u6027\u306e\u5b9a\u7fa9<\/strong><\/p>\n<p>ERD\u5185\u306e\u5404\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u3064\u3044\u3066\u3001\u305d\u306e\u5c5e\u6027\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u305f\u3068\u3048\u3070\uff1a<\/p>\n<ul>\n<li><strong>\u9867\u5ba2<\/strong>: CustomerID\uff08\u4e3b\u30ad\u30fc\uff09\u3001FirstName\u3001LastName\u3001Email\u3001Password\u3002<\/li>\n<li><strong>\u66f8\u7c4d<\/strong>: BookID\uff08\u4e3b\u30ad\u30fc\uff09\u3001Title\u3001ISBN\u3001Price\u3001PublicationYear\u3002<\/li>\n<li><strong>\u8457\u8005<\/strong>: AuthorID\uff08\u4e3b\u30ad\u30fc\uff09\u3001FirstName\u3001LastName\u3001Biography\u3002<\/li>\n<li><strong>\u51fa\u7248\u8005<\/strong>: PublisherID\uff08\u4e3b\u30ad\u30fc\uff09\u3001Name\u3001Address\u3002<\/li>\n<li><strong>\u6ce8\u6587<\/strong>: OrderID\uff08\u4e3b\u30ad\u30fc\uff09\u3001OrderDate\u3001TotalAmount\u3001Status\u3002<\/li>\n<li><strong>\u6ce8\u6587\u9805\u76ee<\/strong>: OrderItemID\uff08\u4e3b\u30ad\u30fc\uff09\u3001BookID\uff08\u5916\u90e8\u30ad\u30fc\uff09\u3001Quantity\u3001Subtotal\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\" 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