{"id":168693,"date":"2024-11-06T15:19:30","date_gmt":"2024-11-06T07:19:30","guid":{"rendered":"https:\/\/server.hk\/cnblog\/168693\/"},"modified":"2024-11-06T15:19:31","modified_gmt":"2024-11-06T07:19:31","slug":"s-%e5%af%a6%e7%8f%be%e5%a4%9a%e8%a1%a8%e6%b7%bb%e5%8a%a0%e5%88%b0%e6%95%b8%e6%93%9a%e5%ba%ab-s-%e5%90%91%e6%95%b8%e6%93%9a%e5%ba%ab%e6%b7%bb%e5%8a%a0%e5%a4%9a%e5%80%8b%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/168693\/","title":{"rendered":"S \u5be6\u73fe\u591a\u8868\u6dfb\u52a0\u5230\u6578\u64da\u5eab (s \u5411\u6578\u64da\u5eab\u6dfb\u52a0\u591a\u500b\u8868)"},"content":{"rendered":"

S \u5be6\u73fe\u591a\u8868\u6dfb\u52a0\u5230\u6578\u64da\u5eab (s \u5411\u6578\u64da\u5eab\u6dfb\u52a0\u591a\u500b\u8868)<\/h1>\n

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\u6578\u64da\u5eab\u8868\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

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\u70ba\u4ec0\u9ebc\u9700\u8981\u6dfb\u52a0\u591a\u500b\u8868<\/h2>\n

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\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u6dfb\u52a0\u591a\u500b\u8868<\/h2>\n

\u5728\u5927\u591a\u6578\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 SQL \u8a9e\u53e5\u4f86\u5275\u5efa\u8868\u3002\u4ee5\u4e0b\u662f\u6dfb\u52a0\u591a\u500b\u8868\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n

1. \u9023\u63a5\u5230\u6578\u64da\u5eab<\/h3>\n

\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u9023\u63a5\u5230\u6578\u64da\u5eab\u3002\u9019\u53ef\u4ee5\u901a\u904e\u5404\u7a2e\u7de8\u7a0b\u8a9e\u8a00\u7684\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f\u4f86\u5be6\u73fe\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 PHP \u9023\u63a5 MySQL \u6578\u64da\u5eab\u7684\u793a\u4f8b\uff1a<\/p>\n

<?php\n$servername = \"localhost\";\n$username = \"username\";\n$password = \"password\";\n$dbname = \"database_name\";\n\n\/\/ \u5275\u5efa\u9023\u63a5\n$conn = new mysqli($servername, $username, $password, $dbname);\n\n\/\/ \u6aa2\u67e5\u9023\u63a5\nif ($conn->connect_error) {\n    die(\"\u9023\u63a5\u5931\u6557: \" . $conn->connect_error);\n}\n?><\/code><\/pre>\n
2. \u5275\u5efa\u8868<\/h3>\n
\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 SQL \u8a9e\u53e5\u4f86\u5275\u5efa\u8868\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u7528\u6236\u8868\u548c\u8a02\u55ae\u8868\u7684\u793a\u4f8b\uff1a<\/p>\n
CREATE TABLE Users (\n    id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,\n    username VARCHAR(30) NOT NULL,\n    email VARCHAR(50),\n    reg_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP\n);\n\nCREATE TABLE Orders (\n    id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,\n    user_id INT(6) UNSIGNED,\n    product_name VARCHAR(50) NOT NULL,\n    order_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP,\n    FOREIGN KEY (user_id) REFERENCES Users(id)\n);<\/code><\/pre>\n
3. \u57f7\u884c SQL \u8a9e\u53e5<\/h3>\n
\u6700\u5f8c\uff0c\u6211\u5011\u9700\u8981\u57f7\u884c\u9019\u4e9b SQL \u8a9e\u53e5\u4f86\u5275\u5efa\u8868\u3002\u4ee5\u4e0b\u662f\u57f7\u884c SQL \u8a9e\u53e5\u7684\u793a\u4f8b\uff1a<\/p>\n
$sql1 = \"CREATE TABLE Users (...);\";\n$sql2 = \"CREATE TABLE Orders (...);\";\n\nif ($conn->query($sql1) === TRUE) {\n    echo \"\u7528\u6236\u8868\u5275\u5efa\u6210\u529f\";\n} else {\n    echo \"\u932f\u8aa4: \" . $sql1 . \"<br>\" . $conn->error;\n}\n\nif ($conn->query($sql2) === TRUE) {\n    echo \"\u8a02\u55ae\u8868\u5275\u5efa\u6210\u529f\";\n} else {\n    echo \"\u932f\u8aa4: \" . $sql2 . \"<br>\" . $conn->error;\n}\n?><\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
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\u5b78\u7fd2\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u5be6\u73fe\u591a\u8868\u6dfb\u52a0\uff0c\u7c21\u5316\u6578\u64da\u7ba1\u7406\uff0c\u63d0\u5347\u6548\u7387\uff0c\u8f15\u9b06\u8655\u7406\u591a\u500b\u8868\u7684\u6578\u64da\u63d2\u5165\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-168693","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168693","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=168693"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168693\/revisions"}],"predecessor-version":[{"id":168694,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/168693\/revisions\/168694"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=168693"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=168693"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=168693"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}